404359660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{1307}}^1$

素因数の和:1846

約数の個数: 48

約数和(自身を含む): 878976000

約数和(自身を除く): 474616340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 499, 620, 998, 1307, 1996, 2495, 2614, 4990, 5228, 6535, 9980, 13070, 15469, 26140, 30938, 40517, 61876, 77345, 81034, 154690, 162068, 202585, 309380, 405170, 652193, 810340, 1304386, 2608772, 3260965, 6521930, 13043860, 20217983, 40435966, 80871932, 101089915, 202179830, 404359660]

約数ペア:

[(1, 404359660), (2, 202179830), (4, 101089915), (5, 80871932), (10, 40435966), (20, 20217983), (31, 13043860), (62, 6521930), (124, 3260965), (155, 2608772), (310, 1304386), (499, 810340), (620, 652193), (998, 405170), (1307, 309380), (1996, 202585), (2495, 162068), (2614, 154690), (4990, 81034), (5228, 77345), (6535, 61876), (9980, 40517), (13070, 30938), (15469, 26140)]