218021810

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{81049}}^1$

素因数の和:81325

約数の個数: 16

約数和(自身を含む): 393903000

約数和(自身を除く): 175881190

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 81049, 162098, 405245, 810490, 21802181, 43604362, 109010905, 218021810]

約数ペア:

[(1, 218021810), (2, 109010905), (5, 43604362), (10, 21802181), (269, 810490), (538, 405245), (1345, 162098), (2690, 81049)]