20198485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 26790912

約数和(自身を除く): 6592427

約数列:

[1, 5, 23, 37, 47, 101, 115, 185, 235, 505, 851, 1081, 1739, 2323, 3737, 4255, 4747, 5405, 8695, 11615, 18685, 23735, 39997, 85951, 109181, 175639, 199985, 429755, 545905, 878195, 4039697, 20198485]

約数ペア:

[(1, 20198485), (5, 4039697), (23, 878195), (37, 545905), (47, 429755), (101, 199985), (115, 175639), (185, 109181), (235, 85951), (505, 39997), (851, 23735), (1081, 18685), (1739, 11615), (2323, 8695), (3737, 5405), (4255, 4747)]