78452680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47837}}^1$

素因数の和:47889

約数の個数: 32

約数和(自身を含む): 180827640

約数和(自身を除く): 102374960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 47837, 95674, 191348, 239185, 382696, 478370, 956740, 1913480, 1961317, 3922634, 7845268, 9806585, 15690536, 19613170, 39226340, 78452680]

約数ペア:

[(1, 78452680), (2, 39226340), (4, 19613170), (5, 15690536), (8, 9806585), (10, 7845268), (20, 3922634), (40, 1961317), (41, 1913480), (82, 956740), (164, 478370), (205, 382696), (328, 239185), (410, 191348), (820, 95674), (1640, 47837)]