7947080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3257}}^1$

素因数の和:3329

約数の個数: 32

約数和(自身を含む): 18179640

約数和(自身を除く): 10232560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3257, 6514, 13028, 16285, 26056, 32570, 65140, 130280, 198677, 397354, 794708, 993385, 1589416, 1986770, 3973540, 7947080]

約数ペア:

[(1, 7947080), (2, 3973540), (4, 1986770), (5, 1589416), (8, 993385), (10, 794708), (20, 397354), (40, 198677), (61, 130280), (122, 65140), (244, 32570), (305, 26056), (488, 16285), (610, 13028), (1220, 6514), (2440, 3257)]