20395696

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31091}}^1$

素因数の和:31140

約数の個数: 20

約数和(自身を含む): 40481784

約数和(自身を除く): 20086088

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31091, 62182, 124364, 248728, 497456, 1274731, 2549462, 5098924, 10197848, 20395696]

約数ペア:

[(1, 20395696), (2, 10197848), (4, 5098924), (8, 2549462), (16, 1274731), (41, 497456), (82, 248728), (164, 124364), (328, 62182), (656, 31091)]