1228903225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1111

約数の個数: 72

約数和(自身を含む): 1852381440

約数和(自身を除く): 623478215

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 121, 187, 253, 275, 391, 425, 575, 605, 935, 1039, 1265, 1955, 2057, 2783, 3025, 4301, 4675, 5195, 6325, 9775, 10285, 11429, 13915, 17663, 21505, 23897, 25975, 47311, 51425, 57145, 69575, 88315, 107525, 119485, 125719, 194293, 236555, 262867, 285725, 406249, 441575, 597425, 628595, 971465, 1182775, 1314335, 2031245, 2137223, 2891537, 3142975, 4468739, 4857325, 6571675, 10156225, 10686115, 14457685, 22343695, 49156129, 53430575, 72288425, 111718475, 245780645, 1228903225]

約数ペア:

[(1, 1228903225), (5, 245780645), (11, 111718475), (17, 72288425), (23, 53430575), (25, 49156129), (55, 22343695), (85, 14457685), (115, 10686115), (121, 10156225), (187, 6571675), (253, 4857325), (275, 4468739), (391, 3142975), (425, 2891537), (575, 2137223), (605, 2031245), (935, 1314335), (1039, 1182775), (1265, 971465), (1955, 628595), (2057, 597425), (2783, 441575), (3025, 406249), (4301, 285725), (4675, 262867), (5195, 236555), (6325, 194293), (9775, 125719), (10285, 119485), (11429, 107525), (13915, 88315), (17663, 69575), (21505, 57145), (23897, 51425), (25975, 47311)]