19111240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{349}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 44320500

約数和(自身を除く): 25209260

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 349, 370, 698, 740, 1369, 1396, 1480, 1745, 2738, 2792, 3490, 5476, 6845, 6980, 10952, 12913, 13690, 13960, 25826, 27380, 51652, 54760, 64565, 103304, 129130, 258260, 477781, 516520, 955562, 1911124, 2388905, 3822248, 4777810, 9555620, 19111240]

約数ペア:

[(1, 19111240), (2, 9555620), (4, 4777810), (5, 3822248), (8, 2388905), (10, 1911124), (20, 955562), (37, 516520), (40, 477781), (74, 258260), (148, 129130), (185, 103304), (296, 64565), (349, 54760), (370, 51652), (698, 27380), (740, 25826), (1369, 13960), (1396, 13690), (1480, 12913), (1745, 10952), (2738, 6980), (2792, 6845), (3490, 5476)]