253291285

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{6971}}^1$

素因数の和:7045

約数の個数: 24

約数和(自身を含む): 336831264

約数和(自身を除く): 83539979

約数列:

[1, 5, 13, 43, 65, 169, 215, 559, 845, 2795, 6971, 7267, 34855, 36335, 90623, 299753, 453115, 1178099, 1498765, 3896789, 5890495, 19483945, 50658257, 253291285]

約数ペア:

[(1, 253291285), (5, 50658257), (13, 19483945), (43, 5890495), (65, 3896789), (169, 1498765), (215, 1178099), (559, 453115), (845, 299753), (2795, 90623), (6971, 36335), (7267, 34855)]