20700000

素因数分解:

$2^5\times 3^2\times 5^5\times {\mathrm{23}}^1$

素因数の和:64

約数の個数: 216

約数和(自身を含む): 76776336

約数和(自身を除く): 56076336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 25, 30, 32, 36, 40, 45, 46, 48, 50, 60, 69, 72, 75, 80, 90, 92, 96, 100, 115, 120, 125, 138, 144, 150, 160, 180, 184, 200, 207, 225, 230, 240, 250, 276, 288, 300, 345, 360, 368, 375, 400, 414, 450, 460, 480, 500, 552, 575, 600, 625, 690, 720, 736, 750, 800, 828, 900, 920, 1000, 1035, 1104, 1125, 1150, 1200, 1250, 1380, 1440, 1500, 1656, 1725, 1800, 1840, 1875, 2000, 2070, 2208, 2250, 2300, 2400, 2500, 2760, 2875, 3000, 3125, 3312, 3450, 3600, 3680, 3750, 4000, 4140, 4500, 4600, 5000, 5175, 5520, 5625, 5750, 6000, 6250, 6624, 6900, 7200, 7500, 8280, 8625, 9000, 9200, 9375, 10000, 10350, 11040, 11250, 11500, 12000, 12500, 13800, 14375, 15000, 16560, 17250, 18000, 18400, 18750, 20000, 20700, 22500, 23000, 25000, 25875, 27600, 28125, 28750, 30000, 33120, 34500, 36000, 37500, 41400, 43125, 45000, 46000, 50000, 51750, 55200, 56250, 57500, 60000, 69000, 71875, 75000, 82800, 86250, 90000, 92000, 100000, 103500, 112500, 115000, 129375, 138000, 143750, 150000, 165600, 172500, 180000, 207000, 215625, 225000, 230000, 258750, 276000, 287500, 300000, 345000, 414000, 431250, 450000, 460000, 517500, 575000, 646875, 690000, 828000, 862500, 900000, 1035000, 1150000, 1293750, 1380000, 1725000, 2070000, 2300000, 2587500, 3450000, 4140000, 5175000, 6900000, 10350000, 20700000]

約数ペア:

[(1, 20700000), (2, 10350000), (3, 6900000), (4, 5175000), (5, 4140000), (6, 3450000), (8, 2587500), (9, 2300000), (10, 2070000), (12, 1725000), (15, 1380000), (16, 1293750), (18, 1150000), (20, 1035000), (23, 900000), (24, 862500), (25, 828000), (30, 690000), (32, 646875), (36, 575000), (40, 517500), (45, 460000), (46, 450000), (48, 431250), (50, 414000), (60, 345000), (69, 300000), (72, 287500), (75, 276000), (80, 258750), (90, 230000), (92, 225000), (96, 215625), (100, 207000), (115, 180000), (120, 172500), (125, 165600), (138, 150000), (144, 143750), (150, 138000), (160, 129375), (180, 115000), (184, 112500), (200, 103500), (207, 100000), (225, 92000), (230, 90000), (240, 86250), (250, 82800), (276, 75000), (288, 71875), (300, 69000), (345, 60000), (360, 57500), (368, 56250), (375, 55200), (400, 51750), (414, 50000), (450, 46000), (460, 45000), (480, 43125), (500, 41400), (552, 37500), (575, 36000), (600, 34500), (625, 33120), (690, 30000), (720, 28750), (736, 28125), (750, 27600), (800, 25875), (828, 25000), (900, 23000), (920, 22500), (1000, 20700), (1035, 20000), (1104, 18750), (1125, 18400), (1150, 18000), (1200, 17250), (1250, 16560), (1380, 15000), (1440, 14375), (1500, 13800), (1656, 12500), (1725, 12000), (1800, 11500), (1840, 11250), (1875, 11040), (2000, 10350), (2070, 10000), (2208, 9375), (2250, 9200), (2300, 9000), (2400, 8625), (2500, 8280), (2760, 7500), (2875, 7200), (3000, 6900), (3125, 6624), (3312, 6250), (3450, 6000), (3600, 5750), (3680, 5625), (3750, 5520), (4000, 5175), (4140, 5000), (4500, 4600)]