28158820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23081}}^1$

素因数の和:23151

約数の個数: 24

約数和(自身を含む): 60105528

約数和(自身を除く): 31946708

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23081, 46162, 92324, 115405, 230810, 461620, 1407941, 2815882, 5631764, 7039705, 14079410, 28158820]

約数ペア:

[(1, 28158820), (2, 14079410), (4, 7039705), (5, 5631764), (10, 2815882), (20, 1407941), (61, 461620), (122, 230810), (244, 115405), (305, 92324), (610, 46162), (1220, 23081)]