20919000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:410

約数の個数: 128

約数和(自身を含む): 68889600

約数和(自身を除く): 47970600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 25, 30, 38, 40, 50, 57, 60, 75, 76, 95, 100, 114, 120, 125, 150, 152, 190, 200, 228, 250, 285, 300, 367, 375, 380, 456, 475, 500, 570, 600, 734, 750, 760, 950, 1000, 1101, 1140, 1425, 1468, 1500, 1835, 1900, 2202, 2280, 2375, 2850, 2936, 3000, 3670, 3800, 4404, 4750, 5505, 5700, 6973, 7125, 7340, 8808, 9175, 9500, 11010, 11400, 13946, 14250, 14680, 18350, 19000, 20919, 22020, 27525, 27892, 28500, 34865, 36700, 41838, 44040, 45875, 55050, 55784, 57000, 69730, 73400, 83676, 91750, 104595, 110100, 137625, 139460, 167352, 174325, 183500, 209190, 220200, 275250, 278920, 348650, 367000, 418380, 522975, 550500, 697300, 836760, 871625, 1045950, 1101000, 1394600, 1743250, 2091900, 2614875, 3486500, 4183800, 5229750, 6973000, 10459500, 20919000]

約数ペア:

[(1, 20919000), (2, 10459500), (3, 6973000), (4, 5229750), (5, 4183800), (6, 3486500), (8, 2614875), (10, 2091900), (12, 1743250), (15, 1394600), (19, 1101000), (20, 1045950), (24, 871625), (25, 836760), (30, 697300), (38, 550500), (40, 522975), (50, 418380), (57, 367000), (60, 348650), (75, 278920), (76, 275250), (95, 220200), (100, 209190), (114, 183500), (120, 174325), (125, 167352), (150, 139460), (152, 137625), (190, 110100), (200, 104595), (228, 91750), (250, 83676), (285, 73400), (300, 69730), (367, 57000), (375, 55784), (380, 55050), (456, 45875), (475, 44040), (500, 41838), (570, 36700), (600, 34865), (734, 28500), (750, 27892), (760, 27525), (950, 22020), (1000, 20919), (1101, 19000), (1140, 18350), (1425, 14680), (1468, 14250), (1500, 13946), (1835, 11400), (1900, 11010), (2202, 9500), (2280, 9175), (2375, 8808), (2850, 7340), (2936, 7125), (3000, 6973), (3670, 5700), (3800, 5505), (4404, 4750)]