20165991008

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{122533}}^1$

素因数の和:122719

約数の個数: 48

約数和(自身を含む): 41068495440

約数和(自身を除く): 20902504432

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 139, 148, 278, 296, 556, 592, 1112, 1184, 2224, 4448, 5143, 10286, 20572, 41144, 82288, 122533, 164576, 245066, 490132, 980264, 1960528, 3921056, 4533721, 9067442, 17032087, 18134884, 34064174, 36269768, 68128348, 72539536, 136256696, 145079072, 272513392, 545026784, 630187219, 1260374438, 2520748876, 5041497752, 10082995504, 20165991008]

約数ペア:

[(1, 20165991008), (2, 10082995504), (4, 5041497752), (8, 2520748876), (16, 1260374438), (32, 630187219), (37, 545026784), (74, 272513392), (139, 145079072), (148, 136256696), (278, 72539536), (296, 68128348), (556, 36269768), (592, 34064174), (1112, 18134884), (1184, 17032087), (2224, 9067442), (4448, 4533721), (5143, 3921056), (10286, 1960528), (20572, 980264), (41144, 490132), (82288, 245066), (122533, 164576)]