28786571420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{139079}}^1$

素因数の和:139298

約数の個数: 48

約数和(自身を含む): 61684761600

約数和(自身を除く): 32898190180

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 158, 262, 316, 395, 524, 655, 790, 1310, 1580, 2620, 10349, 20698, 41396, 51745, 103490, 139079, 206980, 278158, 556316, 695395, 1390790, 2781580, 10987241, 18219349, 21974482, 36438698, 43948964, 54936205, 72877396, 91096745, 109872410, 182193490, 219744820, 364386980, 1439328571, 2878657142, 5757314284, 7196642855, 14393285710, 28786571420]

約数ペア:

[(1, 28786571420), (2, 14393285710), (4, 7196642855), (5, 5757314284), (10, 2878657142), (20, 1439328571), (79, 364386980), (131, 219744820), (158, 182193490), (262, 109872410), (316, 91096745), (395, 72877396), (524, 54936205), (655, 43948964), (790, 36438698), (1310, 21974482), (1580, 18219349), (2620, 10987241), (10349, 2781580), (20698, 1390790), (41396, 695395), (51745, 556316), (103490, 278158), (139079, 206980)]