90721972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{23167}}^1$

素因数の和:23271

約数の個数: 24

約数和(自身を含む): 175150080

約数和(自身を除く): 84428108

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 23167, 46334, 92668, 254837, 509674, 1019348, 2061863, 4123726, 8247452, 22680493, 45360986, 90721972]

約数ペア:

[(1, 90721972), (2, 45360986), (4, 22680493), (11, 8247452), (22, 4123726), (44, 2061863), (89, 1019348), (178, 509674), (356, 254837), (979, 92668), (1958, 46334), (3916, 23167)]