39338120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22871}}^1$

素因数の和:22925

約数の個数: 32

約数和(自身を含む): 90573120

約数和(自身を除く): 51235000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 22871, 45742, 91484, 114355, 182968, 228710, 457420, 914840, 983453, 1966906, 3933812, 4917265, 7867624, 9834530, 19669060, 39338120]

約数ペア:

[(1, 39338120), (2, 19669060), (4, 9834530), (5, 7867624), (8, 4917265), (10, 3933812), (20, 1966906), (40, 983453), (43, 914840), (86, 457420), (172, 228710), (215, 182968), (344, 114355), (430, 91484), (860, 45742), (1720, 22871)]