157809788

素因数分解:

$2^2\times {\mathrm{239}}^1\times {\mathrm{383}}^1\times {\mathrm{431}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 278691840

約数和(自身を除く): 120882052

約数列:

[1, 2, 4, 239, 383, 431, 478, 766, 862, 956, 1532, 1724, 91537, 103009, 165073, 183074, 206018, 330146, 366148, 412036, 660292, 39452447, 78904894, 157809788]

約数ペア:

[(1, 157809788), (2, 78904894), (4, 39452447), (239, 660292), (383, 412036), (431, 366148), (478, 330146), (766, 206018), (862, 183074), (956, 165073), (1532, 103009), (1724, 91537)]