78118960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22709}}^1$

素因数の和:22765

約数の個数: 40

約数和(自身を含む): 185858640

約数和(自身を除く): 107739680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 22709, 45418, 90836, 113545, 181672, 227090, 363344, 454180, 908360, 976487, 1816720, 1952974, 3905948, 4882435, 7811896, 9764870, 15623792, 19529740, 39059480, 78118960]

約数ペア:

[(1, 78118960), (2, 39059480), (4, 19529740), (5, 15623792), (8, 9764870), (10, 7811896), (16, 4882435), (20, 3905948), (40, 1952974), (43, 1816720), (80, 976487), (86, 908360), (172, 454180), (215, 363344), (344, 227090), (430, 181672), (688, 113545), (860, 90836), (1720, 45418), (3440, 22709)]