320153960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1143407}}^1$

素因数の和:1143425

約数の個数: 32

約数和(自身を含む): 823253760

約数和(自身を除く): 503099800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1143407, 2286814, 4573628, 5717035, 8003849, 9147256, 11434070, 16007698, 22868140, 32015396, 40019245, 45736280, 64030792, 80038490, 160076980, 320153960]

約数ペア:

[(1, 320153960), (2, 160076980), (4, 80038490), (5, 64030792), (7, 45736280), (8, 40019245), (10, 32015396), (14, 22868140), (20, 16007698), (28, 11434070), (35, 9147256), (40, 8003849), (56, 5717035), (70, 4573628), (140, 2286814), (280, 1143407)]