16890440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{337}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 43804800

約数和(自身を除く): 26914360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 337, 358, 674, 716, 895, 1253, 1348, 1432, 1685, 1790, 2359, 2506, 2696, 3370, 3580, 4718, 5012, 6265, 6740, 7160, 9436, 10024, 11795, 12530, 13480, 18872, 23590, 25060, 47180, 50120, 60323, 94360, 120646, 241292, 301615, 422261, 482584, 603230, 844522, 1206460, 1689044, 2111305, 2412920, 3378088, 4222610, 8445220, 16890440]

約数ペア:

[(1, 16890440), (2, 8445220), (4, 4222610), (5, 3378088), (7, 2412920), (8, 2111305), (10, 1689044), (14, 1206460), (20, 844522), (28, 603230), (35, 482584), (40, 422261), (56, 301615), (70, 241292), (140, 120646), (179, 94360), (280, 60323), (337, 50120), (358, 47180), (674, 25060), (716, 23590), (895, 18872), (1253, 13480), (1348, 12530), (1432, 11795), (1685, 10024), (1790, 9436), (2359, 7160), (2506, 6740), (2696, 6265), (3370, 5012), (3580, 4718)]