656239480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:693

約数の個数: 128

約数和(自身を含む): 1690214400

約数和(自身を除く): 1033974920

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 127, 130, 152, 190, 247, 254, 260, 380, 494, 508, 520, 523, 635, 760, 988, 1016, 1046, 1235, 1270, 1651, 1976, 2092, 2413, 2470, 2540, 2615, 3302, 4184, 4826, 4940, 5080, 5230, 6604, 6799, 8255, 9652, 9880, 9937, 10460, 12065, 13208, 13598, 16510, 19304, 19874, 20920, 24130, 27196, 31369, 33020, 33995, 39748, 48260, 49685, 54392, 62738, 66040, 66421, 67990, 79496, 96520, 99370, 125476, 129181, 132842, 135980, 156845, 198740, 250952, 258362, 265684, 271960, 313690, 332105, 397480, 516724, 531368, 627380, 645905, 664210, 863473, 1033448, 1254760, 1261999, 1291810, 1328420, 1726946, 2523998, 2583620, 2656840, 3453892, 4317365, 5047996, 5167240, 6309995, 6907784, 8634730, 10095992, 12619990, 16405987, 17269460, 25239980, 32811974, 34538920, 50479960, 65623948, 82029935, 131247896, 164059870, 328119740, 656239480]

約数ペア:

[(1, 656239480), (2, 328119740), (4, 164059870), (5, 131247896), (8, 82029935), (10, 65623948), (13, 50479960), (19, 34538920), (20, 32811974), (26, 25239980), (38, 17269460), (40, 16405987), (52, 12619990), (65, 10095992), (76, 8634730), (95, 6907784), (104, 6309995), (127, 5167240), (130, 5047996), (152, 4317365), (190, 3453892), (247, 2656840), (254, 2583620), (260, 2523998), (380, 1726946), (494, 1328420), (508, 1291810), (520, 1261999), (523, 1254760), (635, 1033448), (760, 863473), (988, 664210), (1016, 645905), (1046, 627380), (1235, 531368), (1270, 516724), (1651, 397480), (1976, 332105), (2092, 313690), (2413, 271960), (2470, 265684), (2540, 258362), (2615, 250952), (3302, 198740), (4184, 156845), (4826, 135980), (4940, 132842), (5080, 129181), (5230, 125476), (6604, 99370), (6799, 96520), (8255, 79496), (9652, 67990), (9880, 66421), (9937, 66040), (10460, 62738), (12065, 54392), (13208, 49685), (13598, 48260), (16510, 39748), (19304, 33995), (19874, 33020), (20920, 31369), (24130, 27196)]