51645640

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4073}}^1$

素因数の和:4401

約数の個数: 32

約数和(自身を含む): 116597880

約数和(自身を除く): 64952240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 4073, 6340, 8146, 12680, 16292, 20365, 32584, 40730, 81460, 162920, 1291141, 2582282, 5164564, 6455705, 10329128, 12911410, 25822820, 51645640]

約数ペア:

[(1, 51645640), (2, 25822820), (4, 12911410), (5, 10329128), (8, 6455705), (10, 5164564), (20, 2582282), (40, 1291141), (317, 162920), (634, 81460), (1268, 40730), (1585, 32584), (2536, 20365), (3170, 16292), (4073, 12680), (6340, 8146)]