20180899856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{108649}}^1$

素因数の和:108736

約数の個数: 80

約数和(自身を含む): 45267936000

約数和(自身を除く): 25087036144

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 152, 188, 208, 247, 304, 376, 494, 611, 752, 893, 988, 1222, 1786, 1976, 2444, 3572, 3952, 4888, 7144, 9776, 11609, 14288, 23218, 46436, 92872, 108649, 185744, 217298, 434596, 869192, 1412437, 1738384, 2064331, 2824874, 4128662, 5106503, 5649748, 8257324, 10213006, 11299496, 16514648, 20426012, 22598992, 26836303, 33029296, 40852024, 53672606, 66384539, 81704048, 97023557, 107345212, 132769078, 194047114, 214690424, 265538156, 388094228, 429380848, 531076312, 776188456, 1062152624, 1261306241, 1552376912, 2522612482, 5045224964, 10090449928, 20180899856]

約数ペア:

[(1, 20180899856), (2, 10090449928), (4, 5045224964), (8, 2522612482), (13, 1552376912), (16, 1261306241), (19, 1062152624), (26, 776188456), (38, 531076312), (47, 429380848), (52, 388094228), (76, 265538156), (94, 214690424), (104, 194047114), (152, 132769078), (188, 107345212), (208, 97023557), (247, 81704048), (304, 66384539), (376, 53672606), (494, 40852024), (611, 33029296), (752, 26836303), (893, 22598992), (988, 20426012), (1222, 16514648), (1786, 11299496), (1976, 10213006), (2444, 8257324), (3572, 5649748), (3952, 5106503), (4888, 4128662), (7144, 2824874), (9776, 2064331), (11609, 1738384), (14288, 1412437), (23218, 869192), (46436, 434596), (92872, 217298), (108649, 185744)]