20592016

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20655344

約数列:

[1, 2, 4, 8, 16, 47, 94, 139, 188, 197, 278, 376, 394, 556, 752, 788, 1112, 1576, 2224, 3152, 6533, 9259, 13066, 18518, 26132, 27383, 37036, 52264, 54766, 74072, 104528, 109532, 148144, 219064, 438128, 1287001, 2574002, 5148004, 10296008, 20592016]

約数ペア:

[(1, 20592016), (2, 10296008), (4, 5148004), (8, 2574002), (16, 1287001), (47, 438128), (94, 219064), (139, 148144), (188, 109532), (197, 104528), (278, 74072), (376, 54766), (394, 52264), (556, 37036), (752, 27383), (788, 26132), (1112, 18518), (1576, 13066), (2224, 9259), (3152, 6533)]