28291580

素因数分解:

$2^2\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1229}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 59512320

約数和(自身を除く): 31220740

約数列:

[1, 2, 4, 5, 10, 20, 1151, 1229, 2302, 2458, 4604, 4916, 5755, 6145, 11510, 12290, 23020, 24580, 1414579, 2829158, 5658316, 7072895, 14145790, 28291580]

約数ペア:

[(1, 28291580), (2, 14145790), (4, 7072895), (5, 5658316), (10, 2829158), (20, 1414579), (1151, 24580), (1229, 23020), (2302, 12290), (2458, 11510), (4604, 6145), (4916, 5755)]