81981810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{910909}}^1$

素因数の和:910922

約数の個数: 24

約数和(自身を含む): 213152940

約数和(自身を除く): 131171130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 910909, 1821818, 2732727, 4554545, 5465454, 8198181, 9109090, 13663635, 16396362, 27327270, 40990905, 81981810]

約数ペア:

[(1, 81981810), (2, 40990905), (3, 27327270), (5, 16396362), (6, 13663635), (9, 9109090), (10, 8198181), (15, 5465454), (18, 4554545), (30, 2732727), (45, 1821818), (90, 910909)]