19420730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{659}}^1$

素因数の和:1094

約数の個数: 32

約数和(自身を含む): 40106880

約数和(自身を除く): 20686150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 659, 842, 1318, 2105, 2947, 3295, 4210, 4613, 5894, 6590, 9226, 14735, 23065, 29470, 46130, 277439, 554878, 1387195, 1942073, 2774390, 3884146, 9710365, 19420730]

約数ペア:

[(1, 19420730), (2, 9710365), (5, 3884146), (7, 2774390), (10, 1942073), (14, 1387195), (35, 554878), (70, 277439), (421, 46130), (659, 29470), (842, 23065), (1318, 14735), (2105, 9226), (2947, 6590), (3295, 5894), (4210, 4613)]