207645010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{1289}}^1$

素因数の和:1566

約数の個数: 32

約数和(自身を含む): 380343600

約数和(自身を除く): 172698590

約数列:

[1, 2, 5, 10, 89, 178, 181, 362, 445, 890, 905, 1289, 1810, 2578, 6445, 12890, 16109, 32218, 80545, 114721, 161090, 229442, 233309, 466618, 573605, 1147210, 1166545, 2333090, 20764501, 41529002, 103822505, 207645010]

約数ペア:

[(1, 207645010), (2, 103822505), (5, 41529002), (10, 20764501), (89, 2333090), (178, 1166545), (181, 1147210), (362, 573605), (445, 466618), (890, 233309), (905, 229442), (1289, 161090), (1810, 114721), (2578, 80545), (6445, 32218), (12890, 16109)]