5138860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2887}}^1$

素因数の和:2985

約数の個数: 24

約数和(自身を含む): 10916640

約数和(自身を除く): 5777780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2887, 5774, 11548, 14435, 28870, 57740, 256943, 513886, 1027772, 1284715, 2569430, 5138860]

約数ペア:

[(1, 5138860), (2, 2569430), (4, 1284715), (5, 1027772), (10, 513886), (20, 256943), (89, 57740), (178, 28870), (356, 14435), (445, 11548), (890, 5774), (1780, 2887)]