31815220

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1409}}^1$

素因数の和:2547

約数の個数: 24

約数和(自身を含む): 66918600

約数和(自身を除く): 35103380

約数列:

[1, 2, 4, 5, 10, 20, 1129, 1409, 2258, 2818, 4516, 5636, 5645, 7045, 11290, 14090, 22580, 28180, 1590761, 3181522, 6363044, 7953805, 15907610, 31815220]

約数ペア:

[(1, 31815220), (2, 15907610), (4, 7953805), (5, 6363044), (10, 3181522), (20, 1590761), (1129, 28180), (1409, 22580), (2258, 14090), (2818, 11290), (4516, 7045), (5636, 5645)]