388620890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{13187}}^1$

素因数の和:13622

約数の個数: 32

約数和(自身を含む): 801408384

約数和(自身を除く): 412787494

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2947, 4210, 5894, 13187, 14735, 26374, 29470, 65935, 92309, 131870, 184618, 461545, 923090, 5551727, 11103454, 27758635, 38862089, 55517270, 77724178, 194310445, 388620890]

約数ペア:

[(1, 388620890), (2, 194310445), (5, 77724178), (7, 55517270), (10, 38862089), (14, 27758635), (35, 11103454), (70, 5551727), (421, 923090), (842, 461545), (2105, 184618), (2947, 131870), (4210, 92309), (5894, 65935), (13187, 29470), (14735, 26374)]