804560020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{215123}}^1$

素因数の和:215160

約数の個数: 48

約数和(自身を含む): 1951604928

約数和(自身を除く): 1147044908

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 215123, 430246, 860492, 1075615, 2151230, 2366353, 3657091, 4302460, 4732706, 7314182, 9465412, 11831765, 14628364, 18285455, 23663530, 36570910, 40228001, 47327060, 73141820, 80456002, 160912004, 201140005, 402280010, 804560020]

約数ペア:

[(1, 804560020), (2, 402280010), (4, 201140005), (5, 160912004), (10, 80456002), (11, 73141820), (17, 47327060), (20, 40228001), (22, 36570910), (34, 23663530), (44, 18285455), (55, 14628364), (68, 11831765), (85, 9465412), (110, 7314182), (170, 4732706), (187, 4302460), (220, 3657091), (340, 2366353), (374, 2151230), (748, 1075615), (935, 860492), (1870, 430246), (3740, 215123)]