638595386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2\times {\mathrm{419}}^1$

素因数の和:591

約数の個数: 48

約数和(自身を含む): 1143707040

約数和(自身を除く): 505111654

約数列:

[1, 2, 11, 13, 22, 26, 73, 143, 146, 286, 419, 803, 838, 949, 1606, 1898, 4609, 5329, 5447, 9218, 10439, 10658, 10894, 20878, 30587, 58619, 59917, 61174, 69277, 117238, 119834, 138554, 336457, 397631, 672914, 762047, 795262, 1524094, 2232851, 4373941, 4465702, 8747882, 24561361, 29027063, 49122722, 58054126, 319297693, 638595386]

約数ペア:

[(1, 638595386), (2, 319297693), (11, 58054126), (13, 49122722), (22, 29027063), (26, 24561361), (73, 8747882), (143, 4465702), (146, 4373941), (286, 2232851), (419, 1524094), (803, 795262), (838, 762047), (949, 672914), (1606, 397631), (1898, 336457), (4609, 138554), (5329, 119834), (5447, 117238), (9218, 69277), (10439, 61174), (10658, 59917), (10894, 58619), (20878, 30587)]