20395648

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 53464320

約数和(自身を除く): 33068672

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 52, 56, 64, 68, 91, 103, 104, 112, 119, 128, 136, 182, 206, 208, 221, 224, 238, 272, 364, 412, 416, 442, 448, 476, 544, 721, 728, 824, 832, 884, 896, 952, 1088, 1339, 1442, 1456, 1547, 1648, 1664, 1751, 1768, 1904, 2176, 2678, 2884, 2912, 3094, 3296, 3502, 3536, 3808, 5356, 5768, 5824, 6188, 6592, 7004, 7072, 7616, 9373, 10712, 11536, 11648, 12257, 12376, 13184, 14008, 14144, 15232, 18746, 21424, 22763, 23072, 24514, 24752, 28016, 28288, 37492, 42848, 45526, 46144, 49028, 49504, 56032, 74984, 85696, 91052, 92288, 98056, 99008, 112064, 149968, 159341, 171392, 182104, 196112, 198016, 224128, 299936, 318682, 364208, 392224, 599872, 637364, 728416, 784448, 1199744, 1274728, 1456832, 1568896, 2549456, 2913664, 5098912, 10197824, 20395648]

約数ペア:

[(1, 20395648), (2, 10197824), (4, 5098912), (7, 2913664), (8, 2549456), (13, 1568896), (14, 1456832), (16, 1274728), (17, 1199744), (26, 784448), (28, 728416), (32, 637364), (34, 599872), (52, 392224), (56, 364208), (64, 318682), (68, 299936), (91, 224128), (103, 198016), (104, 196112), (112, 182104), (119, 171392), (128, 159341), (136, 149968), (182, 112064), (206, 99008), (208, 98056), (221, 92288), (224, 91052), (238, 85696), (272, 74984), (364, 56032), (412, 49504), (416, 49028), (442, 46144), (448, 45526), (476, 42848), (544, 37492), (721, 28288), (728, 28016), (824, 24752), (832, 24514), (884, 23072), (896, 22763), (952, 21424), (1088, 18746), (1339, 15232), (1442, 14144), (1456, 14008), (1547, 13184), (1648, 12376), (1664, 12257), (1751, 11648), (1768, 11536), (1904, 10712), (2176, 9373), (2678, 7616), (2884, 7072), (2912, 7004), (3094, 6592), (3296, 6188), (3502, 5824), (3536, 5768), (3808, 5356)]