291265820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{7589}}^1$

素因数の和:7718

約数の個数: 48

約数和(自身を含む): 650311200

約数和(自身を除く): 359045380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1919, 2020, 3838, 7589, 7676, 9595, 15178, 19190, 30356, 37945, 38380, 75890, 144191, 151780, 288382, 576764, 720955, 766489, 1441910, 1532978, 2883820, 3065956, 3832445, 7664890, 14563291, 15329780, 29126582, 58253164, 72816455, 145632910, 291265820]

約数ペア:

[(1, 291265820), (2, 145632910), (4, 72816455), (5, 58253164), (10, 29126582), (19, 15329780), (20, 14563291), (38, 7664890), (76, 3832445), (95, 3065956), (101, 2883820), (190, 1532978), (202, 1441910), (380, 766489), (404, 720955), (505, 576764), (1010, 288382), (1919, 151780), (2020, 144191), (3838, 75890), (7589, 38380), (7676, 37945), (9595, 30356), (15178, 19190)]