20639096

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{503}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 20003464

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 223, 446, 503, 892, 1006, 1784, 2012, 4024, 5129, 10258, 11569, 20516, 23138, 41032, 46276, 92552, 112169, 224338, 448676, 897352, 2579887, 5159774, 10319548, 20639096]

約数ペア:

[(1, 20639096), (2, 10319548), (4, 5159774), (8, 2579887), (23, 897352), (46, 448676), (92, 224338), (184, 112169), (223, 92552), (446, 46276), (503, 41032), (892, 23138), (1006, 20516), (1784, 11569), (2012, 10258), (4024, 5129)]