65303240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{37967}}^1$

素因数の和:38021

約数の個数: 32

約数和(自身を含む): 150353280

約数和(自身を除く): 85050040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 37967, 75934, 151868, 189835, 303736, 379670, 759340, 1518680, 1632581, 3265162, 6530324, 8162905, 13060648, 16325810, 32651620, 65303240]

約数ペア:

[(1, 65303240), (2, 32651620), (4, 16325810), (5, 13060648), (8, 8162905), (10, 6530324), (20, 3265162), (40, 1632581), (43, 1518680), (86, 759340), (172, 379670), (215, 303736), (344, 189835), (430, 151868), (860, 75934), (1720, 37967)]