2991725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 36

約数和(自身を含む): 4353888

約数和(自身を除く): 1362163

約数列:

[1, 5, 11, 23, 25, 43, 55, 115, 121, 215, 253, 275, 473, 575, 605, 989, 1075, 1265, 2365, 2783, 3025, 4945, 5203, 6325, 10879, 11825, 13915, 24725, 26015, 54395, 69575, 119669, 130075, 271975, 598345, 2991725]

約数ペア:

[(1, 2991725), (5, 598345), (11, 271975), (23, 130075), (25, 119669), (43, 69575), (55, 54395), (115, 26015), (121, 24725), (215, 13915), (253, 11825), (275, 10879), (473, 6325), (575, 5203), (605, 4945), (989, 3025), (1075, 2783), (1265, 2365)]