72640912

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{20359}}^1$

素因数の和:20590

約数の個数: 20

約数和(自身を含む): 141379840

約数和(自身を除く): 68738928

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 20359, 40718, 81436, 162872, 325744, 4540057, 9080114, 18160228, 36320456, 72640912]

約数ペア:

[(1, 72640912), (2, 36320456), (4, 18160228), (8, 9080114), (16, 4540057), (223, 325744), (446, 162872), (892, 81436), (1784, 40718), (3568, 20359)]