31784420

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1291}}^1$

素因数の和:2531

約数の個数: 24

約数和(自身を含む): 66853248

約数和(自身を除く): 35068828

約数列:

[1, 2, 4, 5, 10, 20, 1231, 1291, 2462, 2582, 4924, 5164, 6155, 6455, 12310, 12910, 24620, 25820, 1589221, 3178442, 6356884, 7946105, 15892210, 31784420]

約数ペア:

[(1, 31784420), (2, 15892210), (4, 7946105), (5, 6356884), (10, 3178442), (20, 1589221), (1231, 25820), (1291, 24620), (2462, 12910), (2582, 12310), (4924, 6455), (5164, 6155)]