156777664040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3217}}^1\times {\mathrm{19973}}^1$

素因数の和:23262

約数の個数: 64

約数和(自身を含む): 358661932560

約数和(自身を除く): 201884268520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3217, 6434, 12868, 16085, 19973, 25736, 32170, 39946, 64340, 79892, 99865, 128680, 159784, 196237, 199730, 392474, 399460, 784948, 798920, 981185, 1218353, 1569896, 1962370, 2436706, 3924740, 4873412, 6091765, 7849480, 9746824, 12183530, 24367060, 48734120, 64253141, 128506282, 257012564, 321265705, 514025128, 642531410, 1285062820, 2570125640, 3919441601, 7838883202, 15677766404, 19597208005, 31355532808, 39194416010, 78388832020, 156777664040]

約数ペア:

[(1, 156777664040), (2, 78388832020), (4, 39194416010), (5, 31355532808), (8, 19597208005), (10, 15677766404), (20, 7838883202), (40, 3919441601), (61, 2570125640), (122, 1285062820), (244, 642531410), (305, 514025128), (488, 321265705), (610, 257012564), (1220, 128506282), (2440, 64253141), (3217, 48734120), (6434, 24367060), (12868, 12183530), (16085, 9746824), (19973, 7849480), (25736, 6091765), (32170, 4873412), (39946, 3924740), (64340, 2436706), (79892, 1962370), (99865, 1569896), (128680, 1218353), (159784, 981185), (196237, 798920), (199730, 784948), (392474, 399460)]