21075000

素因数分解:

$2^3\times 3^1\times 5^5\times {\mathrm{281}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 66089520

約数和(自身を除く): 45014520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 281, 300, 375, 500, 562, 600, 625, 750, 843, 1000, 1124, 1250, 1405, 1500, 1686, 1875, 2248, 2500, 2810, 3000, 3125, 3372, 3750, 4215, 5000, 5620, 6250, 6744, 7025, 7500, 8430, 9375, 11240, 12500, 14050, 15000, 16860, 18750, 21075, 25000, 28100, 33720, 35125, 37500, 42150, 56200, 70250, 75000, 84300, 105375, 140500, 168600, 175625, 210750, 281000, 351250, 421500, 526875, 702500, 843000, 878125, 1053750, 1405000, 1756250, 2107500, 2634375, 3512500, 4215000, 5268750, 7025000, 10537500, 21075000]

約数ペア:

[(1, 21075000), (2, 10537500), (3, 7025000), (4, 5268750), (5, 4215000), (6, 3512500), (8, 2634375), (10, 2107500), (12, 1756250), (15, 1405000), (20, 1053750), (24, 878125), (25, 843000), (30, 702500), (40, 526875), (50, 421500), (60, 351250), (75, 281000), (100, 210750), (120, 175625), (125, 168600), (150, 140500), (200, 105375), (250, 84300), (281, 75000), (300, 70250), (375, 56200), (500, 42150), (562, 37500), (600, 35125), (625, 33720), (750, 28100), (843, 25000), (1000, 21075), (1124, 18750), (1250, 16860), (1405, 15000), (1500, 14050), (1686, 12500), (1875, 11240), (2248, 9375), (2500, 8430), (2810, 7500), (3000, 7025), (3125, 6744), (3372, 6250), (3750, 5620), (4215, 5000)]