20565542564816

素因数分解:

$2^4\times {\mathrm{3251}}^1\times {\mathrm{395369551}}^1$

素因数の和:395372810

約数の個数: 20

約数和(自身を含む): 39857995276224

約数和(自身を除く): 19292452711408

約数列:

[1, 2, 4, 8, 16, 3251, 6502, 13004, 26008, 52016, 395369551, 790739102, 1581478204, 3162956408, 6325912816, 1285346410301, 2570692820602, 5141385641204, 10282771282408, 20565542564816]

約数ペア:

[(1, 20565542564816), (2, 10282771282408), (4, 5141385641204), (8, 2570692820602), (16, 1285346410301), (3251, 6325912816), (6502, 3162956408), (13004, 1581478204), (26008, 790739102), (52016, 395369551)]