12872720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 34664448

約数和(自身を除く): 21791728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 181, 254, 280, 362, 508, 560, 635, 724, 889, 905, 1016, 1267, 1270, 1448, 1778, 1810, 2032, 2534, 2540, 2896, 3556, 3620, 4445, 5068, 5080, 6335, 7112, 7240, 8890, 10136, 10160, 12670, 14224, 14480, 17780, 20272, 22987, 25340, 35560, 45974, 50680, 71120, 91948, 101360, 114935, 160909, 183896, 229870, 321818, 367792, 459740, 643636, 804545, 919480, 1287272, 1609090, 1838960, 2574544, 3218180, 6436360, 12872720]

約数ペア:

[(1, 12872720), (2, 6436360), (4, 3218180), (5, 2574544), (7, 1838960), (8, 1609090), (10, 1287272), (14, 919480), (16, 804545), (20, 643636), (28, 459740), (35, 367792), (40, 321818), (56, 229870), (70, 183896), (80, 160909), (112, 114935), (127, 101360), (140, 91948), (181, 71120), (254, 50680), (280, 45974), (362, 35560), (508, 25340), (560, 22987), (635, 20272), (724, 17780), (889, 14480), (905, 14224), (1016, 12670), (1267, 10160), (1270, 10136), (1448, 8890), (1778, 7240), (1810, 7112), (2032, 6335), (2534, 5080), (2540, 5068), (2896, 4445), (3556, 3620)]