680079920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:443

約数の個数: 160

約数和(自身を含む): 1813217280

約数和(自身を除く): 1133137360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 127, 130, 152, 190, 208, 247, 254, 260, 271, 304, 380, 494, 508, 520, 542, 635, 760, 988, 1016, 1040, 1084, 1235, 1270, 1355, 1520, 1651, 1976, 2032, 2168, 2413, 2470, 2540, 2710, 3302, 3523, 3952, 4336, 4826, 4940, 5080, 5149, 5420, 6604, 7046, 8255, 9652, 9880, 10160, 10298, 10840, 12065, 13208, 14092, 16510, 17615, 19304, 19760, 20596, 21680, 24130, 25745, 26416, 28184, 31369, 33020, 34417, 35230, 38608, 41192, 48260, 51490, 56368, 62738, 66040, 66937, 68834, 70460, 82384, 96520, 102980, 125476, 132080, 133874, 137668, 140920, 156845, 172085, 193040, 205960, 250952, 267748, 275336, 281840, 313690, 334685, 344170, 411920, 447421, 501904, 535496, 550672, 627380, 653923, 669370, 688340, 894842, 1070992, 1254760, 1307846, 1338740, 1376680, 1789684, 2237105, 2509520, 2615692, 2677480, 2753360, 3269615, 3579368, 4474210, 5231384, 5354960, 6539230, 7158736, 8500999, 8948420, 10462768, 13078460, 17001998, 17896840, 26156920, 34003996, 35793680, 42504995, 52313840, 68007992, 85009990, 136015984, 170019980, 340039960, 680079920]

約数ペア:

[(1, 680079920), (2, 340039960), (4, 170019980), (5, 136015984), (8, 85009990), (10, 68007992), (13, 52313840), (16, 42504995), (19, 35793680), (20, 34003996), (26, 26156920), (38, 17896840), (40, 17001998), (52, 13078460), (65, 10462768), (76, 8948420), (80, 8500999), (95, 7158736), (104, 6539230), (127, 5354960), (130, 5231384), (152, 4474210), (190, 3579368), (208, 3269615), (247, 2753360), (254, 2677480), (260, 2615692), (271, 2509520), (304, 2237105), (380, 1789684), (494, 1376680), (508, 1338740), (520, 1307846), (542, 1254760), (635, 1070992), (760, 894842), (988, 688340), (1016, 669370), (1040, 653923), (1084, 627380), (1235, 550672), (1270, 535496), (1355, 501904), (1520, 447421), (1651, 411920), (1976, 344170), (2032, 334685), (2168, 313690), (2413, 281840), (2470, 275336), (2540, 267748), (2710, 250952), (3302, 205960), (3523, 193040), (3952, 172085), (4336, 156845), (4826, 140920), (4940, 137668), (5080, 133874), (5149, 132080), (5420, 125476), (6604, 102980), (7046, 96520), (8255, 82384), (9652, 70460), (9880, 68834), (10160, 66937), (10298, 66040), (10840, 62738), (12065, 56368), (13208, 51490), (14092, 48260), (16510, 41192), (17615, 38608), (19304, 35230), (19760, 34417), (20596, 33020), (21680, 31369), (24130, 28184), (25745, 26416)]