138215525

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6637}}^1$

素因数の和:6678

約数の個数: 36

約数和(自身を含む): 211128228

約数和(自身を除く): 72912703

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 425, 595, 833, 1225, 2975, 4165, 6637, 20825, 33185, 46459, 112829, 165925, 232295, 325213, 564145, 789803, 1161475, 1626065, 2820725, 3949015, 5528621, 8130325, 19745075, 27643105, 138215525]

約数ペア:

[(1, 138215525), (5, 27643105), (7, 19745075), (17, 8130325), (25, 5528621), (35, 3949015), (49, 2820725), (85, 1626065), (119, 1161475), (175, 789803), (245, 564145), (425, 325213), (595, 232295), (833, 165925), (1225, 112829), (2975, 46459), (4165, 33185), (6637, 20825)]