20189654570

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19989757}}^1$

素因数の和:19989865

約数の個数: 16

約数和(自身を含む): 36701195688

約数和(自身を除く): 16511541118

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 19989757, 39979514, 99948785, 199897570, 2018965457, 4037930914, 10094827285, 20189654570]

約数ペア:

[(1, 20189654570), (2, 10094827285), (5, 4037930914), (10, 2018965457), (101, 199897570), (202, 99948785), (505, 39979514), (1010, 19989757)]