64554740

素因数分解:

$2^2\times 5^1\times {\mathrm{1583}}^1\times {\mathrm{2039}}^1$

素因数の和:3631

約数の個数: 24

約数和(自身を含む): 135717120

約数和(自身を除く): 71162380

約数列:

[1, 2, 4, 5, 10, 20, 1583, 2039, 3166, 4078, 6332, 7915, 8156, 10195, 15830, 20390, 31660, 40780, 3227737, 6455474, 12910948, 16138685, 32277370, 64554740]

約数ペア:

[(1, 64554740), (2, 32277370), (4, 16138685), (5, 12910948), (10, 6455474), (20, 3227737), (1583, 40780), (2039, 31660), (3166, 20390), (4078, 15830), (6332, 10195), (7915, 8156)]