72716225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 102529152

約数和(自身を除く): 29812927

約数列:

[1, 5, 17, 23, 25, 43, 85, 115, 173, 215, 391, 425, 575, 731, 865, 989, 1075, 1955, 2941, 3655, 3979, 4325, 4945, 7439, 9775, 14705, 16813, 18275, 19895, 24725, 37195, 67643, 73525, 84065, 99475, 126463, 171097, 185975, 338215, 420325, 632315, 855485, 1691075, 2908649, 3161575, 4277425, 14543245, 72716225]

約数ペア:

[(1, 72716225), (5, 14543245), (17, 4277425), (23, 3161575), (25, 2908649), (43, 1691075), (85, 855485), (115, 632315), (173, 420325), (215, 338215), (391, 185975), (425, 171097), (575, 126463), (731, 99475), (865, 84065), (989, 73525), (1075, 67643), (1955, 37195), (2941, 24725), (3655, 19895), (3979, 18275), (4325, 16813), (4945, 14705), (7439, 9775)]