18629420

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4177}}^1$

素因数の和:4409

約数の個数: 24

約数和(自身を含む): 39306624

約数和(自身を除く): 20677204

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4177, 4460, 8354, 16708, 20885, 41770, 83540, 931471, 1862942, 3725884, 4657355, 9314710, 18629420]

約数ペア:

[(1, 18629420), (2, 9314710), (4, 4657355), (5, 3725884), (10, 1862942), (20, 931471), (223, 83540), (446, 41770), (892, 20885), (1115, 16708), (2230, 8354), (4177, 4460)]