20123362784

素因数分解:

$2^5\times 7^1\times {\mathrm{409}}^1\times {\mathrm{219649}}^1$

素因数の和:220075

約数の個数: 48

約数和(自身を含む): 45388476000

約数和(自身を除く): 25265113216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 409, 818, 1636, 2863, 3272, 5726, 6544, 11452, 13088, 22904, 45808, 91616, 219649, 439298, 878596, 1537543, 1757192, 3075086, 3514384, 6150172, 7028768, 12300344, 24600688, 49201376, 89836441, 179672882, 359345764, 628855087, 718691528, 1257710174, 1437383056, 2515420348, 2874766112, 5030840696, 10061681392, 20123362784]

約数ペア:

[(1, 20123362784), (2, 10061681392), (4, 5030840696), (7, 2874766112), (8, 2515420348), (14, 1437383056), (16, 1257710174), (28, 718691528), (32, 628855087), (56, 359345764), (112, 179672882), (224, 89836441), (409, 49201376), (818, 24600688), (1636, 12300344), (2863, 7028768), (3272, 6150172), (5726, 3514384), (6544, 3075086), (11452, 1757192), (13088, 1537543), (22904, 878596), (45808, 439298), (91616, 219649)]