68990575

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 87650640

約数和(自身を除く): 18660065

約数列:

[1, 5, 25, 89, 101, 307, 445, 505, 1535, 2225, 2525, 7675, 8989, 27323, 31007, 44945, 136615, 155035, 224725, 683075, 775175, 2759623, 13798115, 68990575]

約数ペア:

[(1, 68990575), (5, 13798115), (25, 2759623), (89, 775175), (101, 683075), (307, 224725), (445, 155035), (505, 136615), (1535, 44945), (2225, 31007), (2525, 27323), (7675, 8989)]