205129640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{222967}}^1$

素因数の和:223001

約数の個数: 32

約数和(自身を含む): 481610880

約数和(自身を除く): 276481240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 222967, 445934, 891868, 1114835, 1783736, 2229670, 4459340, 5128241, 8918680, 10256482, 20512964, 25641205, 41025928, 51282410, 102564820, 205129640]

約数ペア:

[(1, 205129640), (2, 102564820), (4, 51282410), (5, 41025928), (8, 25641205), (10, 20512964), (20, 10256482), (23, 8918680), (40, 5128241), (46, 4459340), (92, 2229670), (115, 1783736), (184, 1114835), (230, 891868), (460, 445934), (920, 222967)]