20193786880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2707}}^1$

素因数の和:2810

約数の個数: 176

約数和(自身を含む): 51086831616

約数和(自身を除く): 30893044736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 124, 128, 155, 160, 188, 235, 248, 256, 310, 320, 376, 470, 496, 512, 620, 640, 752, 940, 992, 1024, 1240, 1280, 1457, 1504, 1880, 1984, 2480, 2560, 2707, 2914, 3008, 3760, 3968, 4960, 5120, 5414, 5828, 6016, 7285, 7520, 7936, 9920, 10828, 11656, 12032, 13535, 14570, 15040, 15872, 19840, 21656, 23312, 24064, 27070, 29140, 30080, 31744, 39680, 43312, 46624, 48128, 54140, 58280, 60160, 79360, 83917, 86624, 93248, 108280, 116560, 120320, 127229, 158720, 167834, 173248, 186496, 216560, 233120, 240640, 254458, 335668, 346496, 372992, 419585, 433120, 466240, 508916, 636145, 671336, 692992, 745984, 839170, 866240, 932480, 1017832, 1272290, 1342672, 1385984, 1491968, 1678340, 1732480, 1864960, 2035664, 2544580, 2685344, 2771968, 3356680, 3464960, 3729920, 3944099, 4071328, 5089160, 5370688, 6713360, 6929920, 7459840, 7888198, 8142656, 10178320, 10741376, 13426720, 13859840, 15776396, 16285312, 19720495, 20356640, 21482752, 26853440, 31552792, 32570624, 39440990, 40713280, 42965504, 53706880, 63105584, 65141248, 78881980, 81426560, 85931008, 107413760, 126211168, 130282496, 157763960, 162853120, 214827520, 252422336, 315527920, 325706240, 429655040, 504844672, 631055840, 651412480, 1009689344, 1262111680, 2019378688, 2524223360, 4038757376, 5048446720, 10096893440, 20193786880]

約数ペア:

[(1, 20193786880), (2, 10096893440), (4, 5048446720), (5, 4038757376), (8, 2524223360), (10, 2019378688), (16, 1262111680), (20, 1009689344), (31, 651412480), (32, 631055840), (40, 504844672), (47, 429655040), (62, 325706240), (64, 315527920), (80, 252422336), (94, 214827520), (124, 162853120), (128, 157763960), (155, 130282496), (160, 126211168), (188, 107413760), (235, 85931008), (248, 81426560), (256, 78881980), (310, 65141248), (320, 63105584), (376, 53706880), (470, 42965504), (496, 40713280), (512, 39440990), (620, 32570624), (640, 31552792), (752, 26853440), (940, 21482752), (992, 20356640), (1024, 19720495), (1240, 16285312), (1280, 15776396), (1457, 13859840), (1504, 13426720), (1880, 10741376), (1984, 10178320), (2480, 8142656), (2560, 7888198), (2707, 7459840), (2914, 6929920), (3008, 6713360), (3760, 5370688), (3968, 5089160), (4960, 4071328), (5120, 3944099), (5414, 3729920), (5828, 3464960), (6016, 3356680), (7285, 2771968), (7520, 2685344), (7936, 2544580), (9920, 2035664), (10828, 1864960), (11656, 1732480), (12032, 1678340), (13535, 1491968), (14570, 1385984), (15040, 1342672), (15872, 1272290), (19840, 1017832), (21656, 932480), (23312, 866240), (24064, 839170), (27070, 745984), (29140, 692992), (30080, 671336), (31744, 636145), (39680, 508916), (43312, 466240), (46624, 433120), (48128, 419585), (54140, 372992), (58280, 346496), (60160, 335668), (79360, 254458), (83917, 240640), (86624, 233120), (93248, 216560), (108280, 186496), (116560, 173248), (120320, 167834), (127229, 158720)]