1021572760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:681

約数の個数: 128

約数和(自身を含む): 2580480000

約数和(自身を除く): 1558907240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 127, 130, 155, 248, 254, 260, 310, 403, 499, 508, 520, 620, 635, 806, 998, 1016, 1240, 1270, 1612, 1651, 1996, 2015, 2495, 2540, 3224, 3302, 3937, 3992, 4030, 4990, 5080, 6487, 6604, 7874, 8060, 8255, 9980, 12974, 13208, 15469, 15748, 16120, 16510, 19685, 19960, 25948, 30938, 31496, 32435, 33020, 39370, 51181, 51896, 61876, 63373, 64870, 66040, 77345, 78740, 102362, 123752, 126746, 129740, 154690, 157480, 201097, 204724, 253492, 255905, 259480, 309380, 316865, 402194, 409448, 506984, 511810, 618760, 633730, 804388, 823849, 1005485, 1023620, 1267460, 1608776, 1647698, 1964563, 2010970, 2047240, 2534920, 3295396, 3929126, 4021940, 4119245, 6590792, 7858252, 8043880, 8238490, 9822815, 15716504, 16476980, 19645630, 25539319, 32953960, 39291260, 51078638, 78582520, 102157276, 127696595, 204314552, 255393190, 510786380, 1021572760]

約数ペア:

[(1, 1021572760), (2, 510786380), (4, 255393190), (5, 204314552), (8, 127696595), (10, 102157276), (13, 78582520), (20, 51078638), (26, 39291260), (31, 32953960), (40, 25539319), (52, 19645630), (62, 16476980), (65, 15716504), (104, 9822815), (124, 8238490), (127, 8043880), (130, 7858252), (155, 6590792), (248, 4119245), (254, 4021940), (260, 3929126), (310, 3295396), (403, 2534920), (499, 2047240), (508, 2010970), (520, 1964563), (620, 1647698), (635, 1608776), (806, 1267460), (998, 1023620), (1016, 1005485), (1240, 823849), (1270, 804388), (1612, 633730), (1651, 618760), (1996, 511810), (2015, 506984), (2495, 409448), (2540, 402194), (3224, 316865), (3302, 309380), (3937, 259480), (3992, 255905), (4030, 253492), (4990, 204724), (5080, 201097), (6487, 157480), (6604, 154690), (7874, 129740), (8060, 126746), (8255, 123752), (9980, 102362), (12974, 78740), (13208, 77345), (15469, 66040), (15748, 64870), (16120, 63373), (16510, 61876), (19685, 51896), (19960, 51181), (25948, 39370), (30938, 33020), (31496, 32435)]