20417200

素因数分解:

$2^4\times 5^2\times {\mathrm{51043}}^1$

素因数の和:51061

約数の個数: 30

約数和(自身を含む): 49053284

約数和(自身を除く): 28636084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51043, 102086, 204172, 255215, 408344, 510430, 816688, 1020860, 1276075, 2041720, 2552150, 4083440, 5104300, 10208600, 20417200]

約数ペア:

[(1, 20417200), (2, 10208600), (4, 5104300), (5, 4083440), (8, 2552150), (10, 2041720), (16, 1276075), (20, 1020860), (25, 816688), (40, 510430), (50, 408344), (80, 255215), (100, 204172), (200, 102086), (400, 51043)]