81856180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30773}}^1$

素因数の和:30808

約数の個数: 48

約数和(自身を含む): 206801280

約数和(自身を除く): 124945100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 30773, 61546, 123092, 153865, 215411, 307730, 430822, 584687, 615460, 861644, 1077055, 1169374, 2154110, 2338748, 2923435, 4092809, 4308220, 5846870, 8185618, 11693740, 16371236, 20464045, 40928090, 81856180]

約数ペア:

[(1, 81856180), (2, 40928090), (4, 20464045), (5, 16371236), (7, 11693740), (10, 8185618), (14, 5846870), (19, 4308220), (20, 4092809), (28, 2923435), (35, 2338748), (38, 2154110), (70, 1169374), (76, 1077055), (95, 861644), (133, 615460), (140, 584687), (190, 430822), (266, 307730), (380, 215411), (532, 153865), (665, 123092), (1330, 61546), (2660, 30773)]