19946970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{883}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 52127712

約数和(自身を除く): 32180742

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 251, 502, 753, 883, 1255, 1506, 1766, 2259, 2510, 2649, 3765, 4415, 4518, 5298, 7530, 7947, 8830, 11295, 13245, 15894, 22590, 26490, 39735, 79470, 221633, 443266, 664899, 1108165, 1329798, 1994697, 2216330, 3324495, 3989394, 6648990, 9973485, 19946970]

約数ペア:

[(1, 19946970), (2, 9973485), (3, 6648990), (5, 3989394), (6, 3324495), (9, 2216330), (10, 1994697), (15, 1329798), (18, 1108165), (30, 664899), (45, 443266), (90, 221633), (251, 79470), (502, 39735), (753, 26490), (883, 22590), (1255, 15894), (1506, 13245), (1766, 11295), (2259, 8830), (2510, 7947), (2649, 7530), (3765, 5298), (4415, 4518)]