20542870

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{30661}}^1$

素因数の和:30735

約数の個数: 16

約数和(自身を含む): 37530288

約数和(自身を除く): 16987418

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 30661, 61322, 153305, 306610, 2054287, 4108574, 10271435, 20542870]

約数ペア:

[(1, 20542870), (2, 10271435), (5, 4108574), (10, 2054287), (67, 306610), (134, 153305), (335, 61322), (670, 30661)]