20690142512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3208769}}^1$

素因数の和:3208821

約数の個数: 40

約数和(自身を含む): 44563397760

約数和(自身を除く): 23873255248

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 3208769, 6417538, 12835076, 25670152, 41713997, 51340304, 83427994, 99471839, 166855988, 198943678, 333711976, 397887356, 667423952, 795774712, 1293133907, 1591549424, 2586267814, 5172535628, 10345071256, 20690142512]

約数ペア:

[(1, 20690142512), (2, 10345071256), (4, 5172535628), (8, 2586267814), (13, 1591549424), (16, 1293133907), (26, 795774712), (31, 667423952), (52, 397887356), (62, 333711976), (104, 198943678), (124, 166855988), (208, 99471839), (248, 83427994), (403, 51340304), (496, 41713997), (806, 25670152), (1612, 12835076), (3224, 6417538), (6448, 3208769)]