18655160

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1409}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 42130800

約数和(自身を除く): 23475640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1409, 1655, 2648, 2818, 3310, 5636, 6620, 7045, 11272, 13240, 14090, 28180, 56360, 466379, 932758, 1865516, 2331895, 3731032, 4663790, 9327580, 18655160]

約数ペア:

[(1, 18655160), (2, 9327580), (4, 4663790), (5, 3731032), (8, 2331895), (10, 1865516), (20, 932758), (40, 466379), (331, 56360), (662, 28180), (1324, 14090), (1409, 13240), (1655, 11272), (2648, 7045), (2818, 6620), (3310, 5636)]