20575712

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 43409520

約数和(自身を除く): 22833808

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 109, 136, 218, 272, 347, 436, 544, 694, 872, 1388, 1744, 1853, 2776, 3488, 3706, 5552, 5899, 7412, 11104, 11798, 14824, 23596, 29648, 37823, 47192, 59296, 75646, 94384, 151292, 188768, 302584, 605168, 642991, 1210336, 1285982, 2571964, 5143928, 10287856, 20575712]

約数ペア:

[(1, 20575712), (2, 10287856), (4, 5143928), (8, 2571964), (16, 1285982), (17, 1210336), (32, 642991), (34, 605168), (68, 302584), (109, 188768), (136, 151292), (218, 94384), (272, 75646), (347, 59296), (436, 47192), (544, 37823), (694, 29648), (872, 23596), (1388, 14824), (1744, 11798), (1853, 11104), (2776, 7412), (3488, 5899), (3706, 5552)]