78902960

素因数分解:

$2^4\times 5^1\times {\mathrm{986287}}^1$

素因数の和:986300

約数の個数: 20

約数和(自身を含む): 183449568

約数和(自身を除く): 104546608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 986287, 1972574, 3945148, 4931435, 7890296, 9862870, 15780592, 19725740, 39451480, 78902960]

約数ペア:

[(1, 78902960), (2, 39451480), (4, 19725740), (5, 15780592), (8, 9862870), (10, 7890296), (16, 4931435), (20, 3945148), (40, 1972574), (80, 986287)]