31128975

素因数分解:

$3^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 57853440

約数和(自身を除く): 26724465

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 107, 135, 225, 321, 431, 535, 675, 963, 1293, 1605, 2155, 2675, 2889, 3879, 4815, 6465, 8025, 10775, 11637, 14445, 19395, 24075, 32325, 46117, 58185, 72225, 96975, 138351, 230585, 290925, 415053, 691755, 1152925, 1245159, 2075265, 3458775, 6225795, 10376325, 31128975]

約数ペア:

[(1, 31128975), (3, 10376325), (5, 6225795), (9, 3458775), (15, 2075265), (25, 1245159), (27, 1152925), (45, 691755), (75, 415053), (107, 290925), (135, 230585), (225, 138351), (321, 96975), (431, 72225), (535, 58185), (675, 46117), (963, 32325), (1293, 24075), (1605, 19395), (2155, 14445), (2675, 11637), (2889, 10775), (3879, 8025), (4815, 6465)]