202415620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21397}}^1$

素因数の和:21460

約数の個数: 48

約数和(自身を含む): 474522048

約数和(自身を除く): 272106428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21397, 42794, 85588, 106985, 213970, 235367, 427940, 470734, 920071, 941468, 1176835, 1840142, 2353670, 3680284, 4600355, 4707340, 9200710, 10120781, 18401420, 20241562, 40483124, 50603905, 101207810, 202415620]

約数ペア:

[(1, 202415620), (2, 101207810), (4, 50603905), (5, 40483124), (10, 20241562), (11, 18401420), (20, 10120781), (22, 9200710), (43, 4707340), (44, 4600355), (55, 3680284), (86, 2353670), (110, 1840142), (172, 1176835), (215, 941468), (220, 920071), (430, 470734), (473, 427940), (860, 235367), (946, 213970), (1892, 106985), (2365, 85588), (4730, 42794), (9460, 21397)]