78157360

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8963}}^1$

素因数の和:9085

約数の個数: 40

約数和(自身を含む): 183403440

約数和(自身を除く): 105246080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 8963, 17926, 35852, 44815, 71704, 89630, 143408, 179260, 358520, 717040, 976967, 1953934, 3907868, 4884835, 7815736, 9769670, 15631472, 19539340, 39078680, 78157360]

約数ペア:

[(1, 78157360), (2, 39078680), (4, 19539340), (5, 15631472), (8, 9769670), (10, 7815736), (16, 4884835), (20, 3907868), (40, 1953934), (80, 976967), (109, 717040), (218, 358520), (436, 179260), (545, 143408), (872, 89630), (1090, 71704), (1744, 44815), (2180, 35852), (4360, 17926), (8720, 8963)]