20650219912

素因数分解:

$2^3\times 7^1\times {\mathrm{1151}}^1\times {\mathrm{320377}}^1$

素因数の和:321541

約数の個数: 32

約数和(自身を含む): 44289054720

約数和(自身を除く): 23638834808

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1151, 2302, 4604, 8057, 9208, 16114, 32228, 64456, 320377, 640754, 1281508, 2242639, 2563016, 4485278, 8970556, 17941112, 368753927, 737507854, 1475015708, 2581277489, 2950031416, 5162554978, 10325109956, 20650219912]

約数ペア:

[(1, 20650219912), (2, 10325109956), (4, 5162554978), (7, 2950031416), (8, 2581277489), (14, 1475015708), (28, 737507854), (56, 368753927), (1151, 17941112), (2302, 8970556), (4604, 4485278), (8057, 2563016), (9208, 2242639), (16114, 1281508), (32228, 640754), (64456, 320377)]