20189545938

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{251}}^1\times {\mathrm{28463}}^1$

素因数の和:28879

約数の個数: 48

約数和(自身を含む): 44199582336

約数和(自身を除く): 24010036398

約数列:

[1, 2, 3, 6, 9, 18, 157, 251, 314, 471, 502, 753, 942, 1413, 1506, 2259, 2826, 4518, 28463, 39407, 56926, 78814, 85389, 118221, 170778, 236442, 256167, 354663, 512334, 709326, 4468691, 7144213, 8937382, 13406073, 14288426, 21432639, 26812146, 40218219, 42865278, 64297917, 80436438, 128595834, 1121641441, 2243282882, 3364924323, 6729848646, 10094772969, 20189545938]

約数ペア:

[(1, 20189545938), (2, 10094772969), (3, 6729848646), (6, 3364924323), (9, 2243282882), (18, 1121641441), (157, 128595834), (251, 80436438), (314, 64297917), (471, 42865278), (502, 40218219), (753, 26812146), (942, 21432639), (1413, 14288426), (1506, 13406073), (2259, 8937382), (2826, 7144213), (4518, 4468691), (28463, 709326), (39407, 512334), (56926, 354663), (78814, 256167), (85389, 236442), (118221, 170778)]