201638620

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{9241}}^1$

素因数の和:10341

約数の個数: 24

約数和(自身を含む): 423875088

約数和(自身を除く): 222236468

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 4364, 5455, 9241, 10910, 18482, 21820, 36964, 46205, 92410, 184820, 10081931, 20163862, 40327724, 50409655, 100819310, 201638620]

約数ペア:

[(1, 201638620), (2, 100819310), (4, 50409655), (5, 40327724), (10, 20163862), (20, 10081931), (1091, 184820), (2182, 92410), (4364, 46205), (5455, 36964), (9241, 21820), (10910, 18482)]