81279872

素因数分解:

$2^7\times {\mathrm{19}}^2\times {\mathrm{1759}}^1$

素因数の和:1811

約数の個数: 48

約数和(自身を含む): 170992800

約数和(自身を除く): 89712928

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 361, 608, 722, 1216, 1444, 1759, 2432, 2888, 3518, 5776, 7036, 11552, 14072, 23104, 28144, 33421, 46208, 56288, 66842, 112576, 133684, 225152, 267368, 534736, 634999, 1069472, 1269998, 2138944, 2539996, 4277888, 5079992, 10159984, 20319968, 40639936, 81279872]

約数ペア:

[(1, 81279872), (2, 40639936), (4, 20319968), (8, 10159984), (16, 5079992), (19, 4277888), (32, 2539996), (38, 2138944), (64, 1269998), (76, 1069472), (128, 634999), (152, 534736), (304, 267368), (361, 225152), (608, 133684), (722, 112576), (1216, 66842), (1444, 56288), (1759, 46208), (2432, 33421), (2888, 28144), (3518, 23104), (5776, 14072), (7036, 11552)]