77771180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1987}}^1$

素因数の和:2118

約数の個数: 48

約数和(自身を含む): 173671680

約数和(自身を除く): 95900500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1957, 1987, 2060, 3914, 3974, 7828, 7948, 9785, 9935, 19570, 19870, 37753, 39140, 39740, 75506, 151012, 188765, 204661, 377530, 409322, 755060, 818644, 1023305, 2046610, 3888559, 4093220, 7777118, 15554236, 19442795, 38885590, 77771180]

約数ペア:

[(1, 77771180), (2, 38885590), (4, 19442795), (5, 15554236), (10, 7777118), (19, 4093220), (20, 3888559), (38, 2046610), (76, 1023305), (95, 818644), (103, 755060), (190, 409322), (206, 377530), (380, 204661), (412, 188765), (515, 151012), (1030, 75506), (1957, 39740), (1987, 39140), (2060, 37753), (3914, 19870), (3974, 19570), (7828, 9935), (7948, 9785)]