145320220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{168977}}^1$

素因数の和:169029

約数の個数: 24

約数和(自身を含む): 312271344

約数和(自身を除く): 166951124

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 168977, 337954, 675908, 844885, 1689770, 3379540, 7266011, 14532022, 29064044, 36330055, 72660110, 145320220]

約数ペア:

[(1, 145320220), (2, 72660110), (4, 36330055), (5, 29064044), (10, 14532022), (20, 7266011), (43, 3379540), (86, 1689770), (172, 844885), (215, 675908), (430, 337954), (860, 168977)]