39983480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12653}}^1$

素因数の和:12743

約数の個数: 32

約数和(自身を含む): 91108800

約数和(自身を除く): 51125320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 12653, 25306, 50612, 63265, 101224, 126530, 253060, 506120, 999587, 1999174, 3998348, 4997935, 7996696, 9995870, 19991740, 39983480]

約数ペア:

[(1, 39983480), (2, 19991740), (4, 9995870), (5, 7996696), (8, 4997935), (10, 3998348), (20, 1999174), (40, 999587), (79, 506120), (158, 253060), (316, 126530), (395, 101224), (632, 63265), (790, 50612), (1580, 25306), (3160, 12653)]