25423780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16091}}^1$

素因数の和:16179

約数の個数: 24

約数和(自身を含む): 54069120

約数和(自身を除く): 28645340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16091, 32182, 64364, 80455, 160910, 321820, 1271189, 2542378, 5084756, 6355945, 12711890, 25423780]

約数ペア:

[(1, 25423780), (2, 12711890), (4, 6355945), (5, 5084756), (10, 2542378), (20, 1271189), (79, 321820), (158, 160910), (316, 80455), (395, 64364), (790, 32182), (1580, 16091)]