20197254820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9998641}}^1$

素因数の和:9998751

約数の個数: 24

約数和(自身を含む): 42834182328

約数和(自身を除く): 22636927508

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9998641, 19997282, 39994564, 49993205, 99986410, 199972820, 1009862741, 2019725482, 4039450964, 5049313705, 10098627410, 20197254820]

約数ペア:

[(1, 20197254820), (2, 10098627410), (4, 5049313705), (5, 4039450964), (10, 2019725482), (20, 1009862741), (101, 199972820), (202, 99986410), (404, 49993205), (505, 39994564), (1010, 19997282), (2020, 9998641)]