20021724905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2659}}^1$

素因数の和:2783

約数の個数: 96

約数和(自身を含む): 31776998400

約数和(自身を除く): 11755273495

約数列:

[1, 5, 7, 13, 19, 35, 65, 67, 91, 95, 133, 169, 247, 335, 455, 469, 665, 845, 871, 1183, 1235, 1273, 1729, 2345, 2659, 3211, 4355, 5915, 6097, 6365, 8645, 8911, 11323, 13295, 16055, 16549, 18613, 22477, 30485, 34567, 44555, 50521, 56615, 79261, 82745, 93065, 112385, 115843, 172835, 178153, 215137, 241969, 252605, 353647, 396305, 449371, 579215, 656773, 890765, 1075685, 1209845, 1247071, 1505959, 1768235, 2246855, 2315989, 3145597, 3283865, 3384907, 4597411, 6235355, 7529795, 8538049, 11579945, 15727985, 16211923, 16924535, 22987055, 23694349, 30107857, 42690245, 44003791, 59766343, 81059615, 118471745, 150539285, 210754999, 220018955, 298831715, 308026537, 572049283, 1053774995, 1540132685, 2860246415, 4004344981, 20021724905]

約数ペア:

[(1, 20021724905), (5, 4004344981), (7, 2860246415), (13, 1540132685), (19, 1053774995), (35, 572049283), (65, 308026537), (67, 298831715), (91, 220018955), (95, 210754999), (133, 150539285), (169, 118471745), (247, 81059615), (335, 59766343), (455, 44003791), (469, 42690245), (665, 30107857), (845, 23694349), (871, 22987055), (1183, 16924535), (1235, 16211923), (1273, 15727985), (1729, 11579945), (2345, 8538049), (2659, 7529795), (3211, 6235355), (4355, 4597411), (5915, 3384907), (6097, 3283865), (6365, 3145597), (8645, 2315989), (8911, 2246855), (11323, 1768235), (13295, 1505959), (16055, 1247071), (16549, 1209845), (18613, 1075685), (22477, 890765), (30485, 656773), (34567, 579215), (44555, 449371), (50521, 396305), (56615, 353647), (79261, 252605), (82745, 241969), (93065, 215137), (112385, 178153), (115843, 172835)]