391472

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:620

約数の個数: 20

約数和(自身を含む): 777480

約数和(自身を除く): 386008

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 569, 688, 1138, 2276, 4552, 9104, 24467, 48934, 97868, 195736, 391472]

約数ペア:

[(1, 391472), (2, 195736), (4, 97868), (8, 48934), (16, 24467), (43, 9104), (86, 4552), (172, 2276), (344, 1138), (569, 688)]