68009980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{82939}}^1$

素因数の和:82989

約数の個数: 24

約数和(自身を含む): 146306160

約数和(自身を除く): 78296180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 82939, 165878, 331756, 414695, 829390, 1658780, 3400499, 6800998, 13601996, 17002495, 34004990, 68009980]

約数ペア:

[(1, 68009980), (2, 34004990), (4, 17002495), (5, 13601996), (10, 6800998), (20, 3400499), (41, 1658780), (82, 829390), (164, 414695), (205, 331756), (410, 165878), (820, 82939)]