218981475

素因数分解:

$3^4\times 5^2\times {\mathrm{108139}}^1$

素因数の和:108161

約数の個数: 30

約数和(自身を含む): 405633140

約数和(自身を除く): 186651665

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 108139, 324417, 540695, 973251, 1622085, 2703475, 2919753, 4866255, 8110425, 8759259, 14598765, 24331275, 43796295, 72993825, 218981475]

約数ペア:

[(1, 218981475), (3, 72993825), (5, 43796295), (9, 24331275), (15, 14598765), (25, 8759259), (27, 8110425), (45, 4866255), (75, 2919753), (81, 2703475), (135, 1622085), (225, 973251), (405, 540695), (675, 324417), (2025, 108139)]