15223505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 21022848

約数和(自身を除く): 5799343

約数列:

[1, 5, 11, 41, 43, 55, 157, 205, 215, 451, 473, 785, 1727, 1763, 2255, 2365, 6437, 6751, 8635, 8815, 19393, 32185, 33755, 70807, 74261, 96965, 276791, 354035, 371305, 1383955, 3044701, 15223505]

約数ペア:

[(1, 15223505), (5, 3044701), (11, 1383955), (41, 371305), (43, 354035), (55, 276791), (157, 96965), (205, 74261), (215, 70807), (451, 33755), (473, 32185), (785, 19393), (1727, 8815), (1763, 8635), (2255, 6751), (2365, 6437)]