19489389620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{360781}}^1$

素因数の和:360900

約数の個数: 48

約数和(自身を含む): 42609797328

約数和(自身を除く): 23120407708

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 365, 370, 730, 740, 1460, 2701, 5402, 10804, 13505, 27010, 54020, 360781, 721562, 1443124, 1803905, 3607810, 7215620, 13348897, 26337013, 26697794, 52674026, 53395588, 66744485, 105348052, 131685065, 133488970, 263370130, 266977940, 526740260, 974469481, 1948938962, 3897877924, 4872347405, 9744694810, 19489389620]

約数ペア:

[(1, 19489389620), (2, 9744694810), (4, 4872347405), (5, 3897877924), (10, 1948938962), (20, 974469481), (37, 526740260), (73, 266977940), (74, 263370130), (146, 133488970), (148, 131685065), (185, 105348052), (292, 66744485), (365, 53395588), (370, 52674026), (730, 26697794), (740, 26337013), (1460, 13348897), (2701, 7215620), (5402, 3607810), (10804, 1803905), (13505, 1443124), (27010, 721562), (54020, 360781)]