31390135

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4133}}^1$

素因数の和:4183

約数の個数: 24

約数和(自身を含む): 45242496

約数和(自身を除く): 13852361

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 4133, 7595, 20665, 28931, 128123, 144655, 202517, 640615, 896861, 1012585, 4484305, 6278027, 31390135]

約数ペア:

[(1, 31390135), (5, 6278027), (7, 4484305), (31, 1012585), (35, 896861), (49, 640615), (155, 202517), (217, 144655), (245, 128123), (1085, 28931), (1519, 20665), (4133, 7595)]