20875645090

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1\times {\mathrm{1213}}^1$

素因数の和:1687

約数の個数: 64

約数和(自身を含む): 38775062880

約数和(自身を除く): 17899417790

約数列:

[1, 2, 5, 10, 61, 89, 122, 178, 305, 317, 445, 610, 634, 890, 1213, 1585, 2426, 3170, 5429, 6065, 10858, 12130, 19337, 27145, 28213, 38674, 54290, 56426, 73993, 96685, 107957, 141065, 147986, 193370, 215914, 282130, 369965, 384521, 539785, 739930, 769042, 1079570, 1720993, 1922605, 3441986, 3845210, 6585377, 8604965, 13170754, 17209930, 23455781, 32926885, 34222369, 46911562, 65853770, 68444738, 117278905, 171111845, 234557810, 342223690, 2087564509, 4175129018, 10437822545, 20875645090]

約数ペア:

[(1, 20875645090), (2, 10437822545), (5, 4175129018), (10, 2087564509), (61, 342223690), (89, 234557810), (122, 171111845), (178, 117278905), (305, 68444738), (317, 65853770), (445, 46911562), (610, 34222369), (634, 32926885), (890, 23455781), (1213, 17209930), (1585, 13170754), (2426, 8604965), (3170, 6585377), (5429, 3845210), (6065, 3441986), (10858, 1922605), (12130, 1720993), (19337, 1079570), (27145, 769042), (28213, 739930), (38674, 539785), (54290, 384521), (56426, 369965), (73993, 282130), (96685, 215914), (107957, 193370), (141065, 147986)]