20638292480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 320

約数和(自身を含む): 56756367360

約数和(自身を除く): 36118074880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 127, 128, 130, 152, 160, 190, 208, 247, 254, 256, 257, 260, 304, 320, 380, 416, 494, 508, 512, 514, 520, 608, 635, 640, 760, 832, 988, 1016, 1028, 1040, 1216, 1235, 1270, 1280, 1285, 1520, 1651, 1664, 1976, 2032, 2056, 2080, 2413, 2432, 2470, 2540, 2560, 2570, 3040, 3302, 3328, 3341, 3952, 4064, 4112, 4160, 4826, 4864, 4883, 4940, 5080, 5140, 6080, 6604, 6656, 6682, 7904, 8128, 8224, 8255, 8320, 9652, 9728, 9766, 9880, 10160, 10280, 12065, 12160, 13208, 13364, 15808, 16256, 16448, 16510, 16640, 16705, 19304, 19532, 19760, 20320, 20560, 24130, 24320, 24415, 26416, 26728, 31369, 31616, 32512, 32639, 32896, 33020, 33280, 33410, 38608, 39064, 39520, 40640, 41120, 48260, 48640, 48830, 52832, 53456, 62738, 63232, 63479, 65024, 65278, 65792, 66040, 66820, 77216, 78128, 79040, 81280, 82240, 96520, 97660, 105664, 106912, 125476, 126464, 126958, 130556, 131584, 132080, 133640, 154432, 156256, 156845, 158080, 162560, 163195, 164480, 193040, 195320, 211328, 213824, 250952, 253916, 261112, 264160, 267280, 308864, 312512, 313690, 316160, 317395, 325120, 326390, 328960, 386080, 390640, 422656, 424307, 427648, 501904, 507832, 522224, 528320, 534560, 617728, 620141, 625024, 627380, 632320, 634790, 652780, 657920, 772160, 781280, 845312, 848614, 855296, 1003808, 1015664, 1044448, 1056640, 1069120, 1235456, 1240282, 1250048, 1254760, 1269580, 1305560, 1544320, 1562560, 1697228, 1710592, 2007616, 2031328, 2088896, 2113280, 2121535, 2138240, 2480564, 2500096, 2509520, 2539160, 2611120, 3088640, 3100705, 3125120, 3394456, 4015232, 4062656, 4177792, 4226560, 4243070, 4276480, 4961128, 5019040, 5078320, 5222240, 6177280, 6201410, 6250240, 6788912, 8030464, 8061833, 8125312, 8355584, 8486140, 8552960, 9922256, 10038080, 10156640, 10444480, 12402820, 12500480, 13577824, 16060928, 16123666, 16250624, 16711168, 16972280, 19844512, 20076160, 20313280, 20888960, 24805640, 27155648, 32247332, 32501248, 33944560, 39689024, 40152320, 40309165, 40626560, 41777920, 49611280, 54311296, 64494664, 67889120, 79378048, 80304640, 80618330, 81253120, 83555840, 99222560, 108622592, 128989328, 135778240, 158756096, 161236660, 162506240, 198445120, 217245184, 257978656, 271556480, 317512192, 322473320, 396890240, 515957312, 543112960, 644946640, 793780480, 1031914624, 1086225920, 1289893280, 1587560960, 2063829248, 2579786560, 4127658496, 5159573120, 10319146240, 20638292480]

約数ペア:

[(1, 20638292480), (2, 10319146240), (4, 5159573120), (5, 4127658496), (8, 2579786560), (10, 2063829248), (13, 1587560960), (16, 1289893280), (19, 1086225920), (20, 1031914624), (26, 793780480), (32, 644946640), (38, 543112960), (40, 515957312), (52, 396890240), (64, 322473320), (65, 317512192), (76, 271556480), (80, 257978656), (95, 217245184), (104, 198445120), (127, 162506240), (128, 161236660), (130, 158756096), (152, 135778240), (160, 128989328), (190, 108622592), (208, 99222560), (247, 83555840), (254, 81253120), (256, 80618330), (257, 80304640), (260, 79378048), (304, 67889120), (320, 64494664), (380, 54311296), (416, 49611280), (494, 41777920), (508, 40626560), (512, 40309165), (514, 40152320), (520, 39689024), (608, 33944560), (635, 32501248), (640, 32247332), (760, 27155648), (832, 24805640), (988, 20888960), (1016, 20313280), (1028, 20076160), (1040, 19844512), (1216, 16972280), (1235, 16711168), (1270, 16250624), (1280, 16123666), (1285, 16060928), (1520, 13577824), (1651, 12500480), (1664, 12402820), (1976, 10444480), (2032, 10156640), (2056, 10038080), (2080, 9922256), (2413, 8552960), (2432, 8486140), (2470, 8355584), (2540, 8125312), (2560, 8061833), (2570, 8030464), (3040, 6788912), (3302, 6250240), (3328, 6201410), (3341, 6177280), (3952, 5222240), (4064, 5078320), (4112, 5019040), (4160, 4961128), (4826, 4276480), (4864, 4243070), (4883, 4226560), (4940, 4177792), (5080, 4062656), (5140, 4015232), (6080, 3394456), (6604, 3125120), (6656, 3100705), (6682, 3088640), (7904, 2611120), (8128, 2539160), (8224, 2509520), (8255, 2500096), (8320, 2480564), (9652, 2138240), (9728, 2121535), (9766, 2113280), (9880, 2088896), (10160, 2031328), (10280, 2007616), (12065, 1710592), (12160, 1697228), (13208, 1562560), (13364, 1544320), (15808, 1305560), (16256, 1269580), (16448, 1254760), (16510, 1250048), (16640, 1240282), (16705, 1235456), (19304, 1069120), (19532, 1056640), (19760, 1044448), (20320, 1015664), (20560, 1003808), (24130, 855296), (24320, 848614), (24415, 845312), (26416, 781280), (26728, 772160), (31369, 657920), (31616, 652780), (32512, 634790), (32639, 632320), (32896, 627380), (33020, 625024), (33280, 620141), (33410, 617728), (38608, 534560), (39064, 528320), (39520, 522224), (40640, 507832), (41120, 501904), (48260, 427648), (48640, 424307), (48830, 422656), (52832, 390640), (53456, 386080), (62738, 328960), (63232, 326390), (63479, 325120), (65024, 317395), (65278, 316160), (65792, 313690), (66040, 312512), (66820, 308864), (77216, 267280), (78128, 264160), (79040, 261112), (81280, 253916), (82240, 250952), (96520, 213824), (97660, 211328), (105664, 195320), (106912, 193040), (125476, 164480), (126464, 163195), (126958, 162560), (130556, 158080), (131584, 156845), (132080, 156256), (133640, 154432)]