31389620

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{4523}}^1$

素因数の和:4879

約数の個数: 24

約数和(自身を含む): 66122784

約数和(自身を除く): 34733164

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 4523, 6940, 9046, 18092, 22615, 45230, 90460, 1569481, 3138962, 6277924, 7847405, 15694810, 31389620]

約数ペア:

[(1, 31389620), (2, 15694810), (4, 7847405), (5, 6277924), (10, 3138962), (20, 1569481), (347, 90460), (694, 45230), (1388, 22615), (1735, 18092), (3470, 9046), (4523, 6940)]