123155225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 173238912

約数和(自身を除く): 50083687

約数列:

[1, 5, 17, 23, 25, 43, 85, 115, 215, 293, 391, 425, 575, 731, 989, 1075, 1465, 1955, 3655, 4945, 4981, 6739, 7325, 9775, 12599, 16813, 18275, 24725, 24905, 33695, 62995, 84065, 114563, 124525, 168475, 214183, 289777, 314975, 420325, 572815, 1070915, 1448885, 2864075, 4926209, 5354575, 7244425, 24631045, 123155225]

約数ペア:

[(1, 123155225), (5, 24631045), (17, 7244425), (23, 5354575), (25, 4926209), (43, 2864075), (85, 1448885), (115, 1070915), (215, 572815), (293, 420325), (391, 314975), (425, 289777), (575, 214183), (731, 168475), (989, 124525), (1075, 114563), (1465, 84065), (1955, 62995), (3655, 33695), (4945, 24905), (4981, 24725), (6739, 18275), (7325, 16813), (9775, 12599)]