1279660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 2716560

約数和(自身を除く): 1436900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 587, 1090, 1174, 2180, 2348, 2935, 5870, 11740, 63983, 127966, 255932, 319915, 639830, 1279660]

約数ペア:

[(1, 1279660), (2, 639830), (4, 319915), (5, 255932), (10, 127966), (20, 63983), (109, 11740), (218, 5870), (436, 2935), (545, 2348), (587, 2180), (1090, 1174)]