18306680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65381}}^1$

素因数の和:65399

約数の個数: 32

約数和(自身を含む): 47075040

約数和(自身を除く): 28768360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65381, 130762, 261524, 326905, 457667, 523048, 653810, 915334, 1307620, 1830668, 2288335, 2615240, 3661336, 4576670, 9153340, 18306680]

約数ペア:

[(1, 18306680), (2, 9153340), (4, 4576670), (5, 3661336), (7, 2615240), (8, 2288335), (10, 1830668), (14, 1307620), (20, 915334), (28, 653810), (35, 523048), (40, 457667), (56, 326905), (70, 261524), (140, 130762), (280, 65381)]