20050888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1031}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 26760632

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1031, 1144, 1496, 1768, 2062, 2431, 4124, 4862, 8248, 9724, 11341, 13403, 17527, 19448, 22682, 26806, 35054, 45364, 53612, 70108, 90728, 107224, 140216, 147433, 192797, 227851, 294866, 385594, 455702, 589732, 771188, 911404, 1179464, 1542376, 1822808, 2506361, 5012722, 10025444, 20050888]

約数ペア:

[(1, 20050888), (2, 10025444), (4, 5012722), (8, 2506361), (11, 1822808), (13, 1542376), (17, 1179464), (22, 911404), (26, 771188), (34, 589732), (44, 455702), (52, 385594), (68, 294866), (88, 227851), (104, 192797), (136, 147433), (143, 140216), (187, 107224), (221, 90728), (286, 70108), (374, 53612), (442, 45364), (572, 35054), (748, 26806), (884, 22682), (1031, 19448), (1144, 17527), (1496, 13403), (1768, 11341), (2062, 9724), (2431, 8248), (4124, 4862)]