398221060

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{18731}}^1$

素因数の和:19803

約数の個数: 24

約数和(自身を含む): 837095616

約数和(自身を除く): 438874556

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315, 10630, 18731, 21260, 37462, 74924, 93655, 187310, 374620, 19911053, 39822106, 79644212, 99555265, 199110530, 398221060]

約数ペア:

[(1, 398221060), (2, 199110530), (4, 99555265), (5, 79644212), (10, 39822106), (20, 19911053), (1063, 374620), (2126, 187310), (4252, 93655), (5315, 74924), (10630, 37462), (18731, 21260)]