127712540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{155747}}^1$

素因数の和:155797

約数の個数: 24

約数和(自身を含む): 274739472

約数和(自身を除く): 147026932

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 155747, 311494, 622988, 778735, 1557470, 3114940, 6385627, 12771254, 25542508, 31928135, 63856270, 127712540]

約数ペア:

[(1, 127712540), (2, 63856270), (4, 31928135), (5, 25542508), (10, 12771254), (20, 6385627), (41, 3114940), (82, 1557470), (164, 778735), (205, 622988), (410, 311494), (820, 155747)]