67275280

素因数分解:

$2^4\times 5^1\times {\mathrm{840941}}^1$

素因数の和:840954

約数の個数: 20

約数和(自身を含む): 156415212

約数和(自身を除く): 89139932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 840941, 1681882, 3363764, 4204705, 6727528, 8409410, 13455056, 16818820, 33637640, 67275280]

約数ペア:

[(1, 67275280), (2, 33637640), (4, 16818820), (5, 13455056), (8, 8409410), (10, 6727528), (16, 4204705), (20, 3363764), (40, 1681882), (80, 840941)]