213551920

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{23623}}^1$

素因数の和:23749

約数の個数: 40

約数和(自身を含む): 500923296

約数和(自身を除く): 287371376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 23623, 47246, 94492, 118115, 188984, 236230, 377968, 472460, 944920, 1889840, 2669399, 5338798, 10677596, 13346995, 21355192, 26693990, 42710384, 53387980, 106775960, 213551920]

約数ペア:

[(1, 213551920), (2, 106775960), (4, 53387980), (5, 42710384), (8, 26693990), (10, 21355192), (16, 13346995), (20, 10677596), (40, 5338798), (80, 2669399), (113, 1889840), (226, 944920), (452, 472460), (565, 377968), (904, 236230), (1130, 188984), (1808, 118115), (2260, 94492), (4520, 47246), (9040, 23623)]