68604040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4409}}^1$

素因数の和:4809

約数の個数: 32

約数和(自身を含む): 154791000

約数和(自身を除く): 86186960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4409, 7780, 8818, 15560, 17636, 22045, 35272, 44090, 88180, 176360, 1715101, 3430202, 6860404, 8575505, 13720808, 17151010, 34302020, 68604040]

約数ペア:

[(1, 68604040), (2, 34302020), (4, 17151010), (5, 13720808), (8, 8575505), (10, 6860404), (20, 3430202), (40, 1715101), (389, 176360), (778, 88180), (1556, 44090), (1945, 35272), (3112, 22045), (3890, 17636), (4409, 15560), (7780, 8818)]