25267220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 59725512

約数和(自身を除く): 34458292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 121, 197, 212, 220, 242, 265, 394, 484, 530, 583, 605, 788, 985, 1060, 1166, 1210, 1970, 2167, 2332, 2420, 2915, 3940, 4334, 5830, 6413, 8668, 10441, 10835, 11660, 12826, 20882, 21670, 23837, 25652, 32065, 41764, 43340, 47674, 52205, 64130, 95348, 104410, 114851, 119185, 128260, 208820, 229702, 238370, 459404, 476740, 574255, 1148510, 1263361, 2297020, 2526722, 5053444, 6316805, 12633610, 25267220]

約数ペア:

[(1, 25267220), (2, 12633610), (4, 6316805), (5, 5053444), (10, 2526722), (11, 2297020), (20, 1263361), (22, 1148510), (44, 574255), (53, 476740), (55, 459404), (106, 238370), (110, 229702), (121, 208820), (197, 128260), (212, 119185), (220, 114851), (242, 104410), (265, 95348), (394, 64130), (484, 52205), (530, 47674), (583, 43340), (605, 41764), (788, 32065), (985, 25652), (1060, 23837), (1166, 21670), (1210, 20882), (1970, 12826), (2167, 11660), (2332, 10835), (2420, 10441), (2915, 8668), (3940, 6413), (4334, 5830)]