17252020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 20245580

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 179, 244, 305, 316, 358, 395, 610, 716, 790, 895, 1220, 1580, 1790, 3580, 4819, 9638, 10919, 14141, 19276, 21838, 24095, 28282, 43676, 48190, 54595, 56564, 70705, 96380, 109190, 141410, 218380, 282820, 862601, 1725202, 3450404, 4313005, 8626010, 17252020]

約数ペア:

[(1, 17252020), (2, 8626010), (4, 4313005), (5, 3450404), (10, 1725202), (20, 862601), (61, 282820), (79, 218380), (122, 141410), (158, 109190), (179, 96380), (244, 70705), (305, 56564), (316, 54595), (358, 48190), (395, 43676), (610, 28282), (716, 24095), (790, 21838), (895, 19276), (1220, 14141), (1580, 10919), (1790, 9638), (3580, 4819)]