20320520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46183}}^1$

素因数の和:46205

約数の個数: 32

約数和(自身を含む): 49878720

約数和(自身を除く): 29558200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46183, 92366, 184732, 230915, 369464, 461830, 508013, 923660, 1016026, 1847320, 2032052, 2540065, 4064104, 5080130, 10160260, 20320520]

約数ペア:

[(1, 20320520), (2, 10160260), (4, 5080130), (5, 4064104), (8, 2540065), (10, 2032052), (11, 1847320), (20, 1016026), (22, 923660), (40, 508013), (44, 461830), (55, 369464), (88, 230915), (110, 184732), (220, 92366), (440, 46183)]