68018680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10831}}^1$

素因数の和:10999

約数の個数: 32

約数和(自身を含む): 154031040

約数和(自身を除く): 86012360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 10831, 21662, 43324, 54155, 86648, 108310, 216620, 433240, 1700467, 3400934, 6801868, 8502335, 13603736, 17004670, 34009340, 68018680]

約数ペア:

[(1, 68018680), (2, 34009340), (4, 17004670), (5, 13603736), (8, 8502335), (10, 6801868), (20, 3400934), (40, 1700467), (157, 433240), (314, 216620), (628, 108310), (785, 86648), (1256, 54155), (1570, 43324), (3140, 21662), (6280, 10831)]