856297220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{326831}}^1$

素因数の和:326971

約数の個数: 24

約数和(自身を含む): 1811956608

約数和(自身を除く): 955659388

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 326831, 653662, 1307324, 1634155, 3268310, 6536620, 42814861, 85629722, 171259444, 214074305, 428148610, 856297220]

約数ペア:

[(1, 856297220), (2, 428148610), (4, 214074305), (5, 171259444), (10, 85629722), (20, 42814861), (131, 6536620), (262, 3268310), (524, 1634155), (655, 1307324), (1310, 653662), (2620, 326831)]