81319220

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{13877}}^1$

素因数の和:14179

約数の個数: 24

約数和(自身を含む): 171365544

約数和(自身を除く): 90046324

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 5860, 13877, 27754, 55508, 69385, 138770, 277540, 4065961, 8131922, 16263844, 20329805, 40659610, 81319220]

約数ペア:

[(1, 81319220), (2, 40659610), (4, 20329805), (5, 16263844), (10, 8131922), (20, 4065961), (293, 277540), (586, 138770), (1172, 69385), (1465, 55508), (2930, 27754), (5860, 13877)]