20128997020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91495441}}^1$

素因数の和:91495461

約数の個数: 24

約数和(自身を含む): 46113702768

約数和(自身を除く): 25984705748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91495441, 182990882, 365981764, 457477205, 914954410, 1006449851, 1829908820, 2012899702, 4025799404, 5032249255, 10064498510, 20128997020]

約数ペア:

[(1, 20128997020), (2, 10064498510), (4, 5032249255), (5, 4025799404), (10, 2012899702), (11, 1829908820), (20, 1006449851), (22, 914954410), (44, 457477205), (55, 365981764), (110, 182990882), (220, 91495441)]