639403212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2207}}^1\times {\mathrm{3449}}^1$

素因数の和:5670

約数の個数: 48

約数和(自身を含む): 1706342400

約数和(自身を除く): 1066939188

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2207, 3449, 4414, 6621, 6898, 8828, 10347, 13242, 13796, 15449, 20694, 24143, 26484, 30898, 41388, 46347, 48286, 61796, 72429, 92694, 96572, 144858, 185388, 289716, 7611943, 15223886, 22835829, 30447772, 45671658, 53283601, 91343316, 106567202, 159850803, 213134404, 319701606, 639403212]

約数ペア:

[(1, 639403212), (2, 319701606), (3, 213134404), (4, 159850803), (6, 106567202), (7, 91343316), (12, 53283601), (14, 45671658), (21, 30447772), (28, 22835829), (42, 15223886), (84, 7611943), (2207, 289716), (3449, 185388), (4414, 144858), (6621, 96572), (6898, 92694), (8828, 72429), (10347, 61796), (13242, 48286), (13796, 46347), (15449, 41388), (20694, 30898), (24143, 26484)]