8901860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{941}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 20889792

約数和(自身を除く): 11987932

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 941, 946, 1882, 1892, 2365, 3764, 4705, 4730, 9410, 9460, 10351, 18820, 20702, 40463, 41404, 51755, 80926, 103510, 161852, 202315, 207020, 404630, 445093, 809260, 890186, 1780372, 2225465, 4450930, 8901860]

約数ペア:

[(1, 8901860), (2, 4450930), (4, 2225465), (5, 1780372), (10, 890186), (11, 809260), (20, 445093), (22, 404630), (43, 207020), (44, 202315), (55, 161852), (86, 103510), (110, 80926), (172, 51755), (215, 41404), (220, 40463), (430, 20702), (473, 18820), (860, 10351), (941, 9460), (946, 9410), (1882, 4730), (1892, 4705), (2365, 3764)]