20388590

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{18043}}^1$

素因数の和:18163

約数の個数: 16

約数和(自身を含む): 37026288

約数和(自身を除く): 16637698

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 18043, 36086, 90215, 180430, 2038859, 4077718, 10194295, 20388590]

約数ペア:

[(1, 20388590), (2, 10194295), (5, 4077718), (10, 2038859), (113, 180430), (226, 90215), (565, 36086), (1130, 18043)]