28218980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82997}}^1$

素因数の和:83023

約数の個数: 24

約数和(自身を含む): 62746488

約数和(自身を除く): 34527508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82997, 165994, 331988, 414985, 829970, 1410949, 1659940, 2821898, 5643796, 7054745, 14109490, 28218980]

約数ペア:

[(1, 28218980), (2, 14109490), (4, 7054745), (5, 5643796), (10, 2821898), (17, 1659940), (20, 1410949), (34, 829970), (68, 414985), (85, 331988), (170, 165994), (340, 82997)]