78642620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{561733}}^1$

素因数の和:561749

約数の個数: 24

約数和(自身を含む): 188742624

約数和(自身を除く): 110100004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 561733, 1123466, 2246932, 2808665, 3932131, 5617330, 7864262, 11234660, 15728524, 19660655, 39321310, 78642620]

約数ペア:

[(1, 78642620), (2, 39321310), (4, 19660655), (5, 15728524), (7, 11234660), (10, 7864262), (14, 5617330), (20, 3932131), (28, 2808665), (35, 2246932), (70, 1123466), (140, 561733)]