978680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 2257200

約数和(自身を除く): 1278520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 569, 860, 1138, 1720, 2276, 2845, 4552, 5690, 11380, 22760, 24467, 48934, 97868, 122335, 195736, 244670, 489340, 978680]

約数ペア:

[(1, 978680), (2, 489340), (4, 244670), (5, 195736), (8, 122335), (10, 97868), (20, 48934), (40, 24467), (43, 22760), (86, 11380), (172, 5690), (215, 4552), (344, 2845), (430, 2276), (569, 1720), (860, 1138)]