84145720

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13399}}^1$

素因数の和:13567

約数の個数: 32

約数和(自身を含む): 190548000

約数和(自身を除く): 106402280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 13399, 26798, 53596, 66995, 107192, 133990, 267980, 535960, 2103643, 4207286, 8414572, 10518215, 16829144, 21036430, 42072860, 84145720]

約数ペア:

[(1, 84145720), (2, 42072860), (4, 21036430), (5, 16829144), (8, 10518215), (10, 8414572), (20, 4207286), (40, 2103643), (157, 535960), (314, 267980), (628, 133990), (785, 107192), (1256, 66995), (1570, 53596), (3140, 26798), (6280, 13399)]