81389728

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2861}}^1$

素因数の和:3005

約数の個数: 48

約数和(自身を含む): 184633344

約数和(自身を除く): 103243616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 254, 508, 889, 1016, 1778, 2032, 2861, 3556, 4064, 5722, 7112, 11444, 14224, 20027, 22888, 28448, 40054, 45776, 80108, 91552, 160216, 320432, 363347, 640864, 726694, 1453388, 2543429, 2906776, 5086858, 5813552, 10173716, 11627104, 20347432, 40694864, 81389728]

約数ペア:

[(1, 81389728), (2, 40694864), (4, 20347432), (7, 11627104), (8, 10173716), (14, 5813552), (16, 5086858), (28, 2906776), (32, 2543429), (56, 1453388), (112, 726694), (127, 640864), (224, 363347), (254, 320432), (508, 160216), (889, 91552), (1016, 80108), (1778, 45776), (2032, 40054), (2861, 28448), (3556, 22888), (4064, 20027), (5722, 14224), (7112, 11444)]