131152180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{73681}}^1$

素因数の和:73779

約数の個数: 24

約数和(自身を含む): 278517960

約数和(自身を除く): 147365780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 73681, 147362, 294724, 368405, 736810, 1473620, 6557609, 13115218, 26230436, 32788045, 65576090, 131152180]

約数ペア:

[(1, 131152180), (2, 65576090), (4, 32788045), (5, 26230436), (10, 13115218), (20, 6557609), (89, 1473620), (178, 736810), (356, 368405), (445, 294724), (890, 147362), (1780, 73681)]