131333240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 301916160

約数和(自身を除く): 170582920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 127, 206, 251, 254, 412, 502, 508, 515, 635, 824, 1004, 1016, 1030, 1255, 1270, 2008, 2060, 2510, 2540, 4120, 5020, 5080, 10040, 13081, 25853, 26162, 31877, 51706, 52324, 63754, 65405, 103412, 104648, 127508, 129265, 130810, 159385, 206824, 255016, 258530, 261620, 318770, 517060, 523240, 637540, 1034120, 1275080, 3283331, 6566662, 13133324, 16416655, 26266648, 32833310, 65666620, 131333240]

約数ペア:

[(1, 131333240), (2, 65666620), (4, 32833310), (5, 26266648), (8, 16416655), (10, 13133324), (20, 6566662), (40, 3283331), (103, 1275080), (127, 1034120), (206, 637540), (251, 523240), (254, 517060), (412, 318770), (502, 261620), (508, 258530), (515, 255016), (635, 206824), (824, 159385), (1004, 130810), (1016, 129265), (1030, 127508), (1255, 104648), (1270, 103412), (2008, 65405), (2060, 63754), (2510, 52324), (2540, 51706), (4120, 31877), (5020, 26162), (5080, 25853), (10040, 13081)]