56433220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{68821}}^1$

素因数の和:68871

約数の個数: 24

約数和(自身を含む): 121402008

約数和(自身を除く): 64968788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 68821, 137642, 275284, 344105, 688210, 1376420, 2821661, 5643322, 11286644, 14108305, 28216610, 56433220]

約数ペア:

[(1, 56433220), (2, 28216610), (4, 14108305), (5, 11286644), (10, 5643322), (20, 2821661), (41, 1376420), (82, 688210), (164, 344105), (205, 275284), (410, 137642), (820, 68821)]