28509140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129587}}^1$

素因数の和:129607

約数の個数: 24

約数和(自身を含む): 65312352

約数和(自身を除く): 36803212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129587, 259174, 518348, 647935, 1295870, 1425457, 2591740, 2850914, 5701828, 7127285, 14254570, 28509140]

約数ペア:

[(1, 28509140), (2, 14254570), (4, 7127285), (5, 5701828), (10, 2850914), (11, 2591740), (20, 1425457), (22, 1295870), (44, 647935), (55, 518348), (110, 259174), (220, 129587)]