819340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 1747872

約数和(自身を除く): 928532

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 577, 710, 1154, 1420, 2308, 2885, 5770, 11540, 40967, 81934, 163868, 204835, 409670, 819340]

約数ペア:

[(1, 819340), (2, 409670), (4, 204835), (5, 163868), (10, 81934), (20, 40967), (71, 11540), (142, 5770), (284, 2885), (355, 2308), (577, 1420), (710, 1154)]