20205000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{449}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 68532750

約数和(自身を除く): 48327750

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 449, 450, 500, 600, 625, 750, 898, 900, 1000, 1125, 1250, 1347, 1500, 1796, 1800, 1875, 2245, 2250, 2500, 2694, 3000, 3592, 3750, 4041, 4490, 4500, 5000, 5388, 5625, 6735, 7500, 8082, 8980, 9000, 10776, 11225, 11250, 13470, 15000, 16164, 17960, 20205, 22450, 22500, 26940, 32328, 33675, 40410, 44900, 45000, 53880, 56125, 67350, 80820, 89800, 101025, 112250, 134700, 161640, 168375, 202050, 224500, 269400, 280625, 336750, 404100, 449000, 505125, 561250, 673500, 808200, 841875, 1010250, 1122500, 1347000, 1683750, 2020500, 2245000, 2525625, 3367500, 4041000, 5051250, 6735000, 10102500, 20205000]

約数ペア:

[(1, 20205000), (2, 10102500), (3, 6735000), (4, 5051250), (5, 4041000), (6, 3367500), (8, 2525625), (9, 2245000), (10, 2020500), (12, 1683750), (15, 1347000), (18, 1122500), (20, 1010250), (24, 841875), (25, 808200), (30, 673500), (36, 561250), (40, 505125), (45, 449000), (50, 404100), (60, 336750), (72, 280625), (75, 269400), (90, 224500), (100, 202050), (120, 168375), (125, 161640), (150, 134700), (180, 112250), (200, 101025), (225, 89800), (250, 80820), (300, 67350), (360, 56125), (375, 53880), (449, 45000), (450, 44900), (500, 40410), (600, 33675), (625, 32328), (750, 26940), (898, 22500), (900, 22450), (1000, 20205), (1125, 17960), (1250, 16164), (1347, 15000), (1500, 13470), (1796, 11250), (1800, 11225), (1875, 10776), (2245, 9000), (2250, 8980), (2500, 8082), (2694, 7500), (3000, 6735), (3592, 5625), (3750, 5388), (4041, 5000), (4490, 4500)]