18327460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 39961152

約数和(自身を除く): 21633692

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 101, 172, 202, 211, 215, 404, 422, 430, 505, 844, 860, 1010, 1055, 2020, 2110, 4220, 4343, 8686, 9073, 17372, 18146, 21311, 21715, 36292, 42622, 43430, 45365, 85244, 86860, 90730, 106555, 181460, 213110, 426220, 916373, 1832746, 3665492, 4581865, 9163730, 18327460]

約数ペア:

[(1, 18327460), (2, 9163730), (4, 4581865), (5, 3665492), (10, 1832746), (20, 916373), (43, 426220), (86, 213110), (101, 181460), (172, 106555), (202, 90730), (211, 86860), (215, 85244), (404, 45365), (422, 43430), (430, 42622), (505, 36292), (844, 21715), (860, 21311), (1010, 18146), (1055, 17372), (2020, 9073), (2110, 8686), (4220, 4343)]