280056725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 399630672

約数和(自身を除く): 119573947

約数列:

[1, 5, 13, 17, 25, 65, 85, 173, 221, 293, 325, 425, 865, 1105, 1465, 2249, 2941, 3809, 4325, 4981, 5525, 7325, 11245, 14705, 19045, 24905, 38233, 50689, 56225, 64753, 73525, 95225, 124525, 191165, 253445, 323765, 658957, 861713, 955825, 1267225, 1618825, 3294785, 4308565, 11202269, 16473925, 21542825, 56011345, 280056725]

約数ペア:

[(1, 280056725), (5, 56011345), (13, 21542825), (17, 16473925), (25, 11202269), (65, 4308565), (85, 3294785), (173, 1618825), (221, 1267225), (293, 955825), (325, 861713), (425, 658957), (865, 323765), (1105, 253445), (1465, 191165), (2249, 124525), (2941, 95225), (3809, 73525), (4325, 64753), (4981, 56225), (5525, 50689), (7325, 38233), (11245, 24905), (14705, 19045)]