23018975

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 72

約数和(自身を含む): 37319040

約数和(自身を除く): 14300065

約数列:

[1, 5, 7, 19, 23, 25, 35, 43, 49, 95, 115, 133, 161, 175, 215, 245, 301, 437, 475, 575, 665, 805, 817, 931, 989, 1075, 1127, 1225, 1505, 2107, 2185, 3059, 3325, 4025, 4085, 4655, 4945, 5635, 5719, 6923, 7525, 10535, 10925, 15295, 18791, 20425, 21413, 23275, 24725, 28175, 28595, 34615, 40033, 48461, 52675, 76475, 93955, 107065, 131537, 142975, 173075, 200165, 242305, 469775, 535325, 657685, 920759, 1000825, 1211525, 3288425, 4603795, 23018975]

約数ペア:

[(1, 23018975), (5, 4603795), (7, 3288425), (19, 1211525), (23, 1000825), (25, 920759), (35, 657685), (43, 535325), (49, 469775), (95, 242305), (115, 200165), (133, 173075), (161, 142975), (175, 131537), (215, 107065), (245, 93955), (301, 76475), (437, 52675), (475, 48461), (575, 40033), (665, 34615), (805, 28595), (817, 28175), (931, 24725), (989, 23275), (1075, 21413), (1127, 20425), (1225, 18791), (1505, 15295), (2107, 10925), (2185, 10535), (3059, 7525), (3325, 6923), (4025, 5719), (4085, 5635), (4655, 4945)]