68173640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{16547}}^1$

素因数の和:16661

約数の個数: 32

約数和(自身を含む): 154889280

約数和(自身を除く): 86715640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 16547, 33094, 66188, 82735, 132376, 165470, 330940, 661880, 1704341, 3408682, 6817364, 8521705, 13634728, 17043410, 34086820, 68173640]

約数ペア:

[(1, 68173640), (2, 34086820), (4, 17043410), (5, 13634728), (8, 8521705), (10, 6817364), (20, 3408682), (40, 1704341), (103, 661880), (206, 330940), (412, 165470), (515, 132376), (824, 82735), (1030, 66188), (2060, 33094), (4120, 16547)]