31207340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21977}}^1$

素因数の和:22057

約数の個数: 24

約数和(自身を含む): 66461472

約数和(自身を除く): 35254132

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21977, 43954, 87908, 109885, 219770, 439540, 1560367, 3120734, 6241468, 7801835, 15603670, 31207340]

約数ペア:

[(1, 31207340), (2, 15603670), (4, 7801835), (5, 6241468), (10, 3120734), (20, 1560367), (71, 439540), (142, 219770), (284, 109885), (355, 87908), (710, 43954), (1420, 21977)]