28747540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 62899200

約数和(自身を除く): 34151660

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 199, 233, 310, 398, 466, 620, 796, 932, 995, 1165, 1990, 2330, 3980, 4660, 6169, 7223, 12338, 14446, 24676, 28892, 30845, 36115, 46367, 61690, 72230, 92734, 123380, 144460, 185468, 231835, 463670, 927340, 1437377, 2874754, 5749508, 7186885, 14373770, 28747540]

約数ペア:

[(1, 28747540), (2, 14373770), (4, 7186885), (5, 5749508), (10, 2874754), (20, 1437377), (31, 927340), (62, 463670), (124, 231835), (155, 185468), (199, 144460), (233, 123380), (310, 92734), (398, 72230), (466, 61690), (620, 46367), (796, 36115), (932, 30845), (995, 28892), (1165, 24676), (1990, 14446), (2330, 12338), (3980, 7223), (4660, 6169)]