78414620

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{10079}}^1$

素因数の和:10477

約数の個数: 24

約数和(自身を含む): 165110400

約数和(自身を除く): 86695780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 10079, 20158, 40316, 50395, 100790, 201580, 3920731, 7841462, 15682924, 19603655, 39207310, 78414620]

約数ペア:

[(1, 78414620), (2, 39207310), (4, 19603655), (5, 15682924), (10, 7841462), (20, 3920731), (389, 201580), (778, 100790), (1556, 50395), (1945, 40316), (3890, 20158), (7780, 10079)]