15772720

素因数分解:

$2^4\times 5^1\times {\mathrm{197159}}^1$

素因数の和:197172

約数の個数: 20

約数和(自身を含む): 36671760

約数和(自身を除く): 20899040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197159, 394318, 788636, 985795, 1577272, 1971590, 3154544, 3943180, 7886360, 15772720]

約数ペア:

[(1, 15772720), (2, 7886360), (4, 3943180), (5, 3154544), (8, 1971590), (10, 1577272), (16, 985795), (20, 788636), (40, 394318), (80, 197159)]