17909980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81409}}^1$

素因数の和:81429

約数の個数: 24

約数和(自身を含む): 41030640

約数和(自身を除く): 23120660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81409, 162818, 325636, 407045, 814090, 895499, 1628180, 1790998, 3581996, 4477495, 8954990, 17909980]

約数ペア:

[(1, 17909980), (2, 8954990), (4, 4477495), (5, 3581996), (10, 1790998), (11, 1628180), (20, 895499), (22, 814090), (44, 407045), (55, 325636), (110, 162818), (220, 81409)]