12721250

素因数分解:

$2^1\times 5^4\times {\mathrm{10177}}^1$

素因数の和:10199

約数の個数: 20

約数和(自身を含む): 23847054

約数和(自身を除く): 11125804

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 10177, 20354, 50885, 101770, 254425, 508850, 1272125, 2544250, 6360625, 12721250]

約数ペア:

[(1, 12721250), (2, 6360625), (5, 2544250), (10, 1272125), (25, 508850), (50, 254425), (125, 101770), (250, 50885), (625, 20354), (1250, 10177)]