20790742430

素因数分解:

$2^1\times 5^1\times {\mathrm{4243}}^1\times {\mathrm{490001}}^1$

素因数の和:494251

約数の個数: 16

約数和(自身を含む): 37432232784

約数和(自身を除く): 16641490354

約数列:

[1, 2, 5, 10, 4243, 8486, 21215, 42430, 490001, 980002, 2450005, 4900010, 2079074243, 4158148486, 10395371215, 20790742430]

約数ペア:

[(1, 20790742430), (2, 10395371215), (5, 4158148486), (10, 2079074243), (4243, 4900010), (8486, 2450005), (21215, 980002), (42430, 490001)]