18860080

素因数分解:

$2^4\times 5^1\times {\mathrm{235751}}^1$

素因数の和:235764

約数の個数: 20

約数和(自身を含む): 43849872

約数和(自身を除く): 24989792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235751, 471502, 943004, 1178755, 1886008, 2357510, 3772016, 4715020, 9430040, 18860080]

約数ペア:

[(1, 18860080), (2, 9430040), (4, 4715020), (5, 3772016), (8, 2357510), (10, 1886008), (16, 1178755), (20, 943004), (40, 471502), (80, 235751)]