138438518

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 225927360

約数和(自身を除く): 87488842

約数列:

[1, 2, 23, 29, 46, 58, 157, 314, 661, 667, 1322, 1334, 3611, 4553, 7222, 9106, 15203, 19169, 30406, 38338, 103777, 104719, 207554, 209438, 440887, 881774, 2386871, 3009533, 4773742, 6019066, 69219259, 138438518]

約数ペア:

[(1, 138438518), (2, 69219259), (23, 6019066), (29, 4773742), (46, 3009533), (58, 2386871), (157, 881774), (314, 440887), (661, 209438), (667, 207554), (1322, 104719), (1334, 103777), (3611, 38338), (4553, 30406), (7222, 19169), (9106, 15203)]