20781452

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 37270800

約数和(自身を除く): 16489348

約数列:

[1, 2, 4, 59, 118, 173, 236, 346, 509, 692, 1018, 2036, 10207, 20414, 30031, 40828, 60062, 88057, 120124, 176114, 352228, 5195363, 10390726, 20781452]

約数ペア:

[(1, 20781452), (2, 10390726), (4, 5195363), (59, 352228), (118, 176114), (173, 120124), (236, 88057), (346, 60062), (509, 40828), (692, 30031), (1018, 20414), (2036, 10207)]