644464

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:912

約数の個数: 20

約数和(自身を含む): 1276704

約数和(自身を除く): 632240

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 857, 1714, 3428, 6856, 13712, 40279, 80558, 161116, 322232, 644464]

約数ペア:

[(1, 644464), (2, 322232), (4, 161116), (8, 80558), (16, 40279), (47, 13712), (94, 6856), (188, 3428), (376, 1714), (752, 857)]