28119410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2531}}^1$

素因数の和:2650

約数の個数: 32

約数和(自身を含む): 55785024

約数和(自身を除く): 27665614

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 2531, 5062, 5555, 11110, 12655, 25310, 27841, 55682, 139205, 255631, 278410, 511262, 1278155, 2556310, 2811941, 5623882, 14059705, 28119410]

約数ペア:

[(1, 28119410), (2, 14059705), (5, 5623882), (10, 2811941), (11, 2556310), (22, 1278155), (55, 511262), (101, 278410), (110, 255631), (202, 139205), (505, 55682), (1010, 27841), (1111, 25310), (2222, 12655), (2531, 11110), (5062, 5555)]