77919220

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{3571}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 163826208

約数和(自身を除く): 85906988

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 3571, 4364, 5455, 7142, 10910, 14284, 17855, 21820, 35710, 71420, 3895961, 7791922, 15583844, 19479805, 38959610, 77919220]

約数ペア:

[(1, 77919220), (2, 38959610), (4, 19479805), (5, 15583844), (10, 7791922), (20, 3895961), (1091, 71420), (2182, 35710), (3571, 21820), (4364, 17855), (5455, 14284), (7142, 10910)]