28800880

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{691}}^1$

素因数の和:1225

約数の個数: 40

約数和(自身を含む): 67187664

約数和(自身を除く): 38386784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 691, 1042, 1382, 2084, 2605, 2764, 3455, 4168, 5210, 5528, 6910, 8336, 10420, 11056, 13820, 20840, 27640, 41680, 55280, 360011, 720022, 1440044, 1800055, 2880088, 3600110, 5760176, 7200220, 14400440, 28800880]

約数ペア:

[(1, 28800880), (2, 14400440), (4, 7200220), (5, 5760176), (8, 3600110), (10, 2880088), (16, 1800055), (20, 1440044), (40, 720022), (80, 360011), (521, 55280), (691, 41680), (1042, 27640), (1382, 20840), (2084, 13820), (2605, 11056), (2764, 10420), (3455, 8336), (4168, 6910), (5210, 5528)]