289695740

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{140629}}^1$

素因数の和:140741

約数の個数: 24

約数和(自身を含む): 614271840

約数和(自身を除く): 324576100

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 140629, 281258, 562516, 703145, 1406290, 2812580, 14484787, 28969574, 57939148, 72423935, 144847870, 289695740]

約数ペア:

[(1, 289695740), (2, 144847870), (4, 72423935), (5, 57939148), (10, 28969574), (20, 14484787), (103, 2812580), (206, 1406290), (412, 703145), (515, 562516), (1030, 281258), (2060, 140629)]