128805140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{174061}}^1$

素因数の和:174107

約数の個数: 24

約数和(自身を含む): 277802952

約数和(自身を除く): 148997812

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 174061, 348122, 696244, 870305, 1740610, 3481220, 6440257, 12880514, 25761028, 32201285, 64402570, 128805140]

約数ペア:

[(1, 128805140), (2, 64402570), (4, 32201285), (5, 25761028), (10, 12880514), (20, 6440257), (37, 3481220), (74, 1740610), (148, 870305), (185, 696244), (370, 348122), (740, 174061)]