81484360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{55057}}^1$

素因数の和:55105

約数の個数: 32

約数和(自身を含む): 188298360

約数和(自身を除く): 106814000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 55057, 110114, 220228, 275285, 440456, 550570, 1101140, 2037109, 2202280, 4074218, 8148436, 10185545, 16296872, 20371090, 40742180, 81484360]

約数ペア:

[(1, 81484360), (2, 40742180), (4, 20371090), (5, 16296872), (8, 10185545), (10, 8148436), (20, 4074218), (37, 2202280), (40, 2037109), (74, 1101140), (148, 550570), (185, 440456), (296, 275285), (370, 220228), (740, 110114), (1480, 55057)]