21145200

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 69007488

約数和(自身を除く): 47862288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 67, 75, 80, 100, 120, 134, 150, 200, 201, 240, 263, 268, 300, 335, 400, 402, 526, 536, 600, 670, 789, 804, 1005, 1052, 1072, 1200, 1315, 1340, 1578, 1608, 1675, 2010, 2104, 2630, 2680, 3156, 3216, 3350, 3945, 4020, 4208, 5025, 5260, 5360, 6312, 6575, 6700, 7890, 8040, 10050, 10520, 12624, 13150, 13400, 15780, 16080, 17621, 19725, 20100, 21040, 26300, 26800, 31560, 35242, 39450, 40200, 52600, 52863, 63120, 70484, 78900, 80400, 88105, 105200, 105726, 140968, 157800, 176210, 211452, 264315, 281936, 315600, 352420, 422904, 440525, 528630, 704840, 845808, 881050, 1057260, 1321575, 1409680, 1762100, 2114520, 2643150, 3524200, 4229040, 5286300, 7048400, 10572600, 21145200]

約数ペア:

[(1, 21145200), (2, 10572600), (3, 7048400), (4, 5286300), (5, 4229040), (6, 3524200), (8, 2643150), (10, 2114520), (12, 1762100), (15, 1409680), (16, 1321575), (20, 1057260), (24, 881050), (25, 845808), (30, 704840), (40, 528630), (48, 440525), (50, 422904), (60, 352420), (67, 315600), (75, 281936), (80, 264315), (100, 211452), (120, 176210), (134, 157800), (150, 140968), (200, 105726), (201, 105200), (240, 88105), (263, 80400), (268, 78900), (300, 70484), (335, 63120), (400, 52863), (402, 52600), (526, 40200), (536, 39450), (600, 35242), (670, 31560), (789, 26800), (804, 26300), (1005, 21040), (1052, 20100), (1072, 19725), (1200, 17621), (1315, 16080), (1340, 15780), (1578, 13400), (1608, 13150), (1675, 12624), (2010, 10520), (2104, 10050), (2630, 8040), (2680, 7890), (3156, 6700), (3216, 6575), (3350, 6312), (3945, 5360), (4020, 5260), (4208, 5025)]