31661920

素因数分解:

$2^5\times 5^1\times {\mathrm{197887}}^1$

素因数の和:197902

約数の個数: 24

約数和(自身を含む): 74801664

約数和(自身を除く): 43139744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197887, 395774, 791548, 989435, 1583096, 1978870, 3166192, 3957740, 6332384, 7915480, 15830960, 31661920]

約数ペア:

[(1, 31661920), (2, 15830960), (4, 7915480), (5, 6332384), (8, 3957740), (10, 3166192), (16, 1978870), (20, 1583096), (32, 989435), (40, 791548), (80, 395774), (160, 197887)]