81145288

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^2$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 182168640

約数和(自身を除く): 101023352

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 251, 322, 502, 644, 1004, 1288, 1757, 2008, 3514, 5773, 7028, 11546, 14056, 23092, 40411, 46184, 63001, 80822, 126002, 161644, 252004, 323288, 441007, 504008, 882014, 1449023, 1764028, 2898046, 3528056, 5796092, 10143161, 11592184, 20286322, 40572644, 81145288]

約数ペア:

[(1, 81145288), (2, 40572644), (4, 20286322), (7, 11592184), (8, 10143161), (14, 5796092), (23, 3528056), (28, 2898046), (46, 1764028), (56, 1449023), (92, 882014), (161, 504008), (184, 441007), (251, 323288), (322, 252004), (502, 161644), (644, 126002), (1004, 80822), (1288, 63001), (1757, 46184), (2008, 40411), (3514, 23092), (5773, 14056), (7028, 11546)]