65978680

素因数分解:

$2^3\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1543}}^1$

素因数の和:2623

約数の個数: 32

約数和(自身を含む): 148687200

約数和(自身を除く): 82708520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1069, 1543, 2138, 3086, 4276, 5345, 6172, 7715, 8552, 10690, 12344, 15430, 21380, 30860, 42760, 61720, 1649467, 3298934, 6597868, 8247335, 13195736, 16494670, 32989340, 65978680]

約数ペア:

[(1, 65978680), (2, 32989340), (4, 16494670), (5, 13195736), (8, 8247335), (10, 6597868), (20, 3298934), (40, 1649467), (1069, 61720), (1543, 42760), (2138, 30860), (3086, 21380), (4276, 15430), (5345, 12344), (6172, 10690), (7715, 8552)]