205192500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:387

約数の個数: 120

約数和(自身を含む): 606180960

約数和(自身を除く): 400988460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 109, 125, 150, 218, 250, 251, 300, 327, 375, 436, 500, 502, 545, 625, 654, 750, 753, 1004, 1090, 1250, 1255, 1308, 1500, 1506, 1635, 1875, 2180, 2500, 2510, 2725, 3012, 3270, 3750, 3765, 5020, 5450, 6275, 6540, 7500, 7530, 8175, 10900, 12550, 13625, 15060, 16350, 18825, 25100, 27250, 27359, 31375, 32700, 37650, 40875, 54500, 54718, 62750, 68125, 75300, 81750, 82077, 94125, 109436, 125500, 136250, 136795, 156875, 163500, 164154, 188250, 204375, 272500, 273590, 313750, 328308, 376500, 408750, 410385, 470625, 547180, 627500, 683975, 817500, 820770, 941250, 1367950, 1641540, 1882500, 2051925, 2735900, 3419875, 4103850, 6839750, 8207700, 10259625, 13679500, 17099375, 20519250, 34198750, 41038500, 51298125, 68397500, 102596250, 205192500]

約数ペア:

[(1, 205192500), (2, 102596250), (3, 68397500), (4, 51298125), (5, 41038500), (6, 34198750), (10, 20519250), (12, 17099375), (15, 13679500), (20, 10259625), (25, 8207700), (30, 6839750), (50, 4103850), (60, 3419875), (75, 2735900), (100, 2051925), (109, 1882500), (125, 1641540), (150, 1367950), (218, 941250), (250, 820770), (251, 817500), (300, 683975), (327, 627500), (375, 547180), (436, 470625), (500, 410385), (502, 408750), (545, 376500), (625, 328308), (654, 313750), (750, 273590), (753, 272500), (1004, 204375), (1090, 188250), (1250, 164154), (1255, 163500), (1308, 156875), (1500, 136795), (1506, 136250), (1635, 125500), (1875, 109436), (2180, 94125), (2500, 82077), (2510, 81750), (2725, 75300), (3012, 68125), (3270, 62750), (3750, 54718), (3765, 54500), (5020, 40875), (5450, 37650), (6275, 32700), (6540, 31375), (7500, 27359), (7530, 27250), (8175, 25100), (10900, 18825), (12550, 16350), (13625, 15060)]