251012620

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{72547}}^1$

素因数の和:72729

約数の個数: 24

約数和(自身を含む): 530180784

約数和(自身を除く): 279168164

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 72547, 145094, 290188, 362735, 725470, 1450940, 12550631, 25101262, 50202524, 62753155, 125506310, 251012620]

約数ペア:

[(1, 251012620), (2, 125506310), (4, 62753155), (5, 50202524), (10, 25101262), (20, 12550631), (173, 1450940), (346, 725470), (692, 362735), (865, 290188), (1730, 145094), (3460, 72547)]