18902481920

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{997}}^1$

素因数の和:1075

約数の個数: 264

約数和(自身を含む): 54226896864

約数和(自身を除く): 35324414944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 448, 460, 512, 529, 560, 640, 644, 736, 805, 896, 920, 997, 1024, 1058, 1120, 1280, 1288, 1472, 1610, 1792, 1840, 1994, 2116, 2240, 2560, 2576, 2645, 2944, 3220, 3584, 3680, 3703, 3988, 4232, 4480, 4985, 5120, 5152, 5290, 5888, 6440, 6979, 7168, 7360, 7406, 7976, 8464, 8960, 9970, 10304, 10580, 11776, 12880, 13958, 14720, 14812, 15952, 16928, 17920, 18515, 19940, 20608, 21160, 22931, 23552, 25760, 27916, 29440, 29624, 31904, 33856, 34895, 35840, 37030, 39880, 41216, 42320, 45862, 51520, 55832, 58880, 59248, 63808, 67712, 69790, 74060, 79760, 82432, 84640, 91724, 103040, 111664, 114655, 117760, 118496, 127616, 135424, 139580, 148120, 159520, 160517, 164864, 169280, 183448, 206080, 223328, 229310, 236992, 255232, 270848, 279160, 296240, 319040, 321034, 338560, 366896, 412160, 446656, 458620, 473984, 510464, 527413, 541696, 558320, 592480, 638080, 642068, 677120, 733792, 802585, 824320, 893312, 917240, 947968, 1020928, 1054826, 1116640, 1184960, 1276160, 1284136, 1354240, 1467584, 1605170, 1786624, 1834480, 1895936, 2109652, 2233280, 2369920, 2552320, 2568272, 2637065, 2708480, 2935168, 3210340, 3573248, 3668960, 3691891, 3791872, 4219304, 4466560, 4739840, 5104640, 5136544, 5274130, 5870336, 6420680, 7146496, 7337920, 7383782, 8438608, 8933120, 9479680, 10273088, 10548260, 11740672, 12841360, 14675840, 14767564, 16877216, 17866240, 18459455, 18959360, 20546176, 21096520, 23481344, 25682720, 29351680, 29535128, 33754432, 35732480, 36918910, 41092352, 42193040, 51365440, 58703360, 59070256, 67508864, 73837820, 82184704, 84386080, 102730880, 117406720, 118140512, 135017728, 147675640, 164369408, 168772160, 205461760, 236281024, 270035456, 295351280, 337544320, 410923520, 472562048, 540070912, 590702560, 675088640, 821847040, 945124096, 1181405120, 1350177280, 1890248192, 2362810240, 2700354560, 3780496384, 4725620480, 9451240960, 18902481920]

約数ペア:

[(1, 18902481920), (2, 9451240960), (4, 4725620480), (5, 3780496384), (7, 2700354560), (8, 2362810240), (10, 1890248192), (14, 1350177280), (16, 1181405120), (20, 945124096), (23, 821847040), (28, 675088640), (32, 590702560), (35, 540070912), (40, 472562048), (46, 410923520), (56, 337544320), (64, 295351280), (70, 270035456), (80, 236281024), (92, 205461760), (112, 168772160), (115, 164369408), (128, 147675640), (140, 135017728), (160, 118140512), (161, 117406720), (184, 102730880), (224, 84386080), (230, 82184704), (256, 73837820), (280, 67508864), (320, 59070256), (322, 58703360), (368, 51365440), (448, 42193040), (460, 41092352), (512, 36918910), (529, 35732480), (560, 33754432), (640, 29535128), (644, 29351680), (736, 25682720), (805, 23481344), (896, 21096520), (920, 20546176), (997, 18959360), (1024, 18459455), (1058, 17866240), (1120, 16877216), (1280, 14767564), (1288, 14675840), (1472, 12841360), (1610, 11740672), (1792, 10548260), (1840, 10273088), (1994, 9479680), (2116, 8933120), (2240, 8438608), (2560, 7383782), (2576, 7337920), (2645, 7146496), (2944, 6420680), (3220, 5870336), (3584, 5274130), (3680, 5136544), (3703, 5104640), (3988, 4739840), (4232, 4466560), (4480, 4219304), (4985, 3791872), (5120, 3691891), (5152, 3668960), (5290, 3573248), (5888, 3210340), (6440, 2935168), (6979, 2708480), (7168, 2637065), (7360, 2568272), (7406, 2552320), (7976, 2369920), (8464, 2233280), (8960, 2109652), (9970, 1895936), (10304, 1834480), (10580, 1786624), (11776, 1605170), (12880, 1467584), (13958, 1354240), (14720, 1284136), (14812, 1276160), (15952, 1184960), (16928, 1116640), (17920, 1054826), (18515, 1020928), (19940, 947968), (20608, 917240), (21160, 893312), (22931, 824320), (23552, 802585), (25760, 733792), (27916, 677120), (29440, 642068), (29624, 638080), (31904, 592480), (33856, 558320), (34895, 541696), (35840, 527413), (37030, 510464), (39880, 473984), (41216, 458620), (42320, 446656), (45862, 412160), (51520, 366896), (55832, 338560), (58880, 321034), (59248, 319040), (63808, 296240), (67712, 279160), (69790, 270848), (74060, 255232), (79760, 236992), (82432, 229310), (84640, 223328), (91724, 206080), (103040, 183448), (111664, 169280), (114655, 164864), (117760, 160517), (118496, 159520), (127616, 148120), (135424, 139580)]