81782680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292081}}^1$

素因数の和:292099

約数の個数: 32

約数和(自身を含む): 210299040

約数和(自身を除く): 128516360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292081, 584162, 1168324, 1460405, 2044567, 2336648, 2920810, 4089134, 5841620, 8178268, 10222835, 11683240, 16356536, 20445670, 40891340, 81782680]

約数ペア:

[(1, 81782680), (2, 40891340), (4, 20445670), (5, 16356536), (7, 11683240), (8, 10222835), (10, 8178268), (14, 5841620), (20, 4089134), (28, 2920810), (35, 2336648), (40, 2044567), (56, 1460405), (70, 1168324), (140, 584162), (280, 292081)]