139756520

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{8713}}^1$

素因数の和:9125

約数の個数: 32

約数和(自身を含む): 315272520

約数和(自身を除く): 175516000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 8713, 16040, 17426, 34852, 43565, 69704, 87130, 174260, 348520, 3493913, 6987826, 13975652, 17469565, 27951304, 34939130, 69878260, 139756520]

約数ペア:

[(1, 139756520), (2, 69878260), (4, 34939130), (5, 27951304), (8, 17469565), (10, 13975652), (20, 6987826), (40, 3493913), (401, 348520), (802, 174260), (1604, 87130), (2005, 69704), (3208, 43565), (4010, 34852), (8020, 17426), (8713, 16040)]