168785720

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{24391}}^1$

素因数の和:24575

約数の個数: 32

約数和(自身を含む): 381978720

約数和(自身を除く): 213193000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 24391, 48782, 97564, 121955, 195128, 243910, 487820, 975640, 4219643, 8439286, 16878572, 21098215, 33757144, 42196430, 84392860, 168785720]

約数ペア:

[(1, 168785720), (2, 84392860), (4, 42196430), (5, 33757144), (8, 21098215), (10, 16878572), (20, 8439286), (40, 4219643), (173, 975640), (346, 487820), (692, 243910), (865, 195128), (1384, 121955), (1730, 97564), (3460, 48782), (6920, 24391)]