15872720

素因数分解:

$2^4\times 5^1\times {\mathrm{198409}}^1$

素因数の和:198422

約数の個数: 20

約数和(自身を含む): 36904260

約数和(自身を除く): 21031540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198409, 396818, 793636, 992045, 1587272, 1984090, 3174544, 3968180, 7936360, 15872720]

約数ペア:

[(1, 15872720), (2, 7936360), (4, 3968180), (5, 3174544), (8, 1984090), (10, 1587272), (16, 992045), (20, 793636), (40, 396818), (80, 198409)]