20116165

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 24698880

約数和(自身を除く): 4582715

約数列:

[1, 5, 79, 127, 395, 401, 635, 2005, 10033, 31679, 50165, 50927, 158395, 254635, 4023233, 20116165]

約数ペア:

[(1, 20116165), (5, 4023233), (79, 254635), (127, 158395), (395, 50927), (401, 50165), (635, 31679), (2005, 10033)]