219388640

素因数分解:

$2^5\times 5^1\times {\mathrm{1371179}}^1$

素因数の和:1371194

約数の個数: 24

約数和(自身を含む): 518306040

約数和(自身を除く): 298917400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1371179, 2742358, 5484716, 6855895, 10969432, 13711790, 21938864, 27423580, 43877728, 54847160, 109694320, 219388640]

約数ペア:

[(1, 219388640), (2, 109694320), (4, 54847160), (5, 43877728), (8, 27423580), (10, 21938864), (16, 13711790), (20, 10969432), (32, 6855895), (40, 5484716), (80, 2742358), (160, 1371179)]