17781260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1187}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 25328884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1187, 1498, 2140, 2374, 2996, 3745, 4748, 5935, 7490, 8309, 11870, 14980, 16618, 23740, 33236, 41545, 83090, 127009, 166180, 254018, 508036, 635045, 889063, 1270090, 1778126, 2540180, 3556252, 4445315, 8890630, 17781260]

約数ペア:

[(1, 17781260), (2, 8890630), (4, 4445315), (5, 3556252), (7, 2540180), (10, 1778126), (14, 1270090), (20, 889063), (28, 635045), (35, 508036), (70, 254018), (107, 166180), (140, 127009), (214, 83090), (428, 41545), (535, 33236), (749, 23740), (1070, 16618), (1187, 14980), (1498, 11870), (2140, 8309), (2374, 7490), (2996, 5935), (3745, 4748)]