19073780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 24955660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 479, 724, 905, 958, 1810, 1916, 1991, 2395, 3620, 3982, 4790, 5269, 7964, 9580, 9955, 10538, 19910, 21076, 26345, 39820, 52690, 86699, 105380, 173398, 346796, 433495, 866990, 953689, 1733980, 1907378, 3814756, 4768445, 9536890, 19073780]

約数ペア:

[(1, 19073780), (2, 9536890), (4, 4768445), (5, 3814756), (10, 1907378), (11, 1733980), (20, 953689), (22, 866990), (44, 433495), (55, 346796), (110, 173398), (181, 105380), (220, 86699), (362, 52690), (479, 39820), (724, 26345), (905, 21076), (958, 19910), (1810, 10538), (1916, 9955), (1991, 9580), (2395, 7964), (3620, 5269), (3982, 4790)]