1287275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 1809408

約数和(自身を除く): 522133

約数列:

[1, 5, 11, 25, 31, 55, 151, 155, 275, 341, 755, 775, 1661, 1705, 3775, 4681, 8305, 8525, 23405, 41525, 51491, 117025, 257455, 1287275]

約数ペア:

[(1, 1287275), (5, 257455), (11, 117025), (25, 51491), (31, 41525), (55, 23405), (151, 8525), (155, 8305), (275, 4681), (341, 3775), (755, 1705), (775, 1661)]