81085300

素因数分解:

$2^2\times 5^2\times {\mathrm{810853}}^1$

素因数の和:810867

約数の個数: 18

約数和(自身を含む): 175955318

約数和(自身を除く): 94870018

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 810853, 1621706, 3243412, 4054265, 8108530, 16217060, 20271325, 40542650, 81085300]

約数ペア:

[(1, 81085300), (2, 40542650), (4, 20271325), (5, 16217060), (10, 8108530), (20, 4054265), (25, 3243412), (50, 1621706), (100, 810853)]