21390000

素因数分解:

$2^4\times 3^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 200

約数和(自身を含む): 74376192

約数和(自身を除く): 52986192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 30, 31, 40, 46, 48, 50, 60, 62, 69, 75, 80, 92, 93, 100, 115, 120, 124, 125, 138, 150, 155, 184, 186, 200, 230, 240, 248, 250, 276, 300, 310, 345, 368, 372, 375, 400, 460, 465, 496, 500, 552, 575, 600, 620, 625, 690, 713, 744, 750, 775, 920, 930, 1000, 1104, 1150, 1200, 1240, 1250, 1380, 1426, 1488, 1500, 1550, 1725, 1840, 1860, 1875, 2000, 2139, 2300, 2325, 2480, 2500, 2760, 2852, 2875, 3000, 3100, 3450, 3565, 3720, 3750, 3875, 4278, 4600, 4650, 5000, 5520, 5704, 5750, 6000, 6200, 6900, 7130, 7440, 7500, 7750, 8556, 8625, 9200, 9300, 10000, 10695, 11408, 11500, 11625, 12400, 13800, 14260, 14375, 15000, 15500, 17112, 17250, 17825, 18600, 19375, 21390, 23000, 23250, 27600, 28520, 28750, 30000, 31000, 34224, 34500, 35650, 37200, 38750, 42780, 43125, 46000, 46500, 53475, 57040, 57500, 58125, 62000, 69000, 71300, 77500, 85560, 86250, 89125, 93000, 106950, 115000, 116250, 138000, 142600, 155000, 171120, 172500, 178250, 186000, 213900, 230000, 232500, 267375, 285200, 310000, 345000, 356500, 427800, 445625, 465000, 534750, 690000, 713000, 855600, 891250, 930000, 1069500, 1336875, 1426000, 1782500, 2139000, 2673750, 3565000, 4278000, 5347500, 7130000, 10695000, 21390000]

約数ペア:

[(1, 21390000), (2, 10695000), (3, 7130000), (4, 5347500), (5, 4278000), (6, 3565000), (8, 2673750), (10, 2139000), (12, 1782500), (15, 1426000), (16, 1336875), (20, 1069500), (23, 930000), (24, 891250), (25, 855600), (30, 713000), (31, 690000), (40, 534750), (46, 465000), (48, 445625), (50, 427800), (60, 356500), (62, 345000), (69, 310000), (75, 285200), (80, 267375), (92, 232500), (93, 230000), (100, 213900), (115, 186000), (120, 178250), (124, 172500), (125, 171120), (138, 155000), (150, 142600), (155, 138000), (184, 116250), (186, 115000), (200, 106950), (230, 93000), (240, 89125), (248, 86250), (250, 85560), (276, 77500), (300, 71300), (310, 69000), (345, 62000), (368, 58125), (372, 57500), (375, 57040), (400, 53475), (460, 46500), (465, 46000), (496, 43125), (500, 42780), (552, 38750), (575, 37200), (600, 35650), (620, 34500), (625, 34224), (690, 31000), (713, 30000), (744, 28750), (750, 28520), (775, 27600), (920, 23250), (930, 23000), (1000, 21390), (1104, 19375), (1150, 18600), (1200, 17825), (1240, 17250), (1250, 17112), (1380, 15500), (1426, 15000), (1488, 14375), (1500, 14260), (1550, 13800), (1725, 12400), (1840, 11625), (1860, 11500), (1875, 11408), (2000, 10695), (2139, 10000), (2300, 9300), (2325, 9200), (2480, 8625), (2500, 8556), (2760, 7750), (2852, 7500), (2875, 7440), (3000, 7130), (3100, 6900), (3450, 6200), (3565, 6000), (3720, 5750), (3750, 5704), (3875, 5520), (4278, 5000), (4600, 4650)]