18671950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2037

約数の個数: 48

約数和(自身を含む): 40135824

約数和(自身を除く): 21463874

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 1997, 3994, 4675, 9350, 9985, 19970, 21967, 33949, 43934, 49925, 67898, 99850, 109835, 169745, 219670, 339490, 373439, 549175, 746878, 848725, 1098350, 1697450, 1867195, 3734390, 9335975, 18671950]

約数ペア:

[(1, 18671950), (2, 9335975), (5, 3734390), (10, 1867195), (11, 1697450), (17, 1098350), (22, 848725), (25, 746878), (34, 549175), (50, 373439), (55, 339490), (85, 219670), (110, 169745), (170, 109835), (187, 99850), (275, 67898), (374, 49925), (425, 43934), (550, 33949), (850, 21967), (935, 19970), (1870, 9985), (1997, 9350), (3994, 4675)]