64261580

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{7253}}^1$

素因数の和:7705

約数の個数: 24

約数和(自身を含む): 135272592

約数和(自身を除く): 71011012

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 7253, 8860, 14506, 29012, 36265, 72530, 145060, 3213079, 6426158, 12852316, 16065395, 32130790, 64261580]

約数ペア:

[(1, 64261580), (2, 32130790), (4, 16065395), (5, 12852316), (10, 6426158), (20, 3213079), (443, 145060), (886, 72530), (1772, 36265), (2215, 29012), (4430, 14506), (7253, 8860)]