78902240

素因数分解:

$2^5\times 5^1\times {\mathrm{493139}}^1$

素因数の和:493154

約数の個数: 24

約数和(自身を含む): 186406920

約数和(自身を除く): 107504680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 493139, 986278, 1972556, 2465695, 3945112, 4931390, 7890224, 9862780, 15780448, 19725560, 39451120, 78902240]

約数ペア:

[(1, 78902240), (2, 39451120), (4, 19725560), (5, 15780448), (8, 9862780), (10, 7890224), (16, 4931390), (20, 3945112), (32, 2465695), (40, 1972556), (80, 986278), (160, 493139)]