72168860

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{26339}}^1$

素因数の和:26485

約数の個数: 24

約数和(自身を含む): 152666640

約数和(自身を除く): 80497780

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 26339, 52678, 105356, 131695, 263390, 526780, 3608443, 7216886, 14433772, 18042215, 36084430, 72168860]

約数ペア:

[(1, 72168860), (2, 36084430), (4, 18042215), (5, 14433772), (10, 7216886), (20, 3608443), (137, 526780), (274, 263390), (548, 131695), (685, 105356), (1370, 52678), (2740, 26339)]