21748500

素因数分解:

$2^2\times 3^5\times 5^3\times {\mathrm{179}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 49799340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 125, 135, 150, 162, 179, 180, 225, 243, 250, 270, 300, 324, 358, 375, 405, 450, 486, 500, 537, 540, 675, 716, 750, 810, 895, 900, 972, 1074, 1125, 1215, 1350, 1500, 1611, 1620, 1790, 2025, 2148, 2250, 2430, 2685, 2700, 3222, 3375, 3580, 4050, 4475, 4500, 4833, 4860, 5370, 6075, 6444, 6750, 8055, 8100, 8950, 9666, 10125, 10740, 12150, 13425, 13500, 14499, 16110, 17900, 19332, 20250, 22375, 24165, 24300, 26850, 28998, 30375, 32220, 40275, 40500, 43497, 44750, 48330, 53700, 57996, 60750, 67125, 72495, 80550, 86994, 89500, 96660, 120825, 121500, 134250, 144990, 161100, 173988, 201375, 217485, 241650, 268500, 289980, 362475, 402750, 434970, 483300, 604125, 724950, 805500, 869940, 1087425, 1208250, 1449900, 1812375, 2174850, 2416500, 3624750, 4349700, 5437125, 7249500, 10874250, 21748500]

約数ペア:

[(1, 21748500), (2, 10874250), (3, 7249500), (4, 5437125), (5, 4349700), (6, 3624750), (9, 2416500), (10, 2174850), (12, 1812375), (15, 1449900), (18, 1208250), (20, 1087425), (25, 869940), (27, 805500), (30, 724950), (36, 604125), (45, 483300), (50, 434970), (54, 402750), (60, 362475), (75, 289980), (81, 268500), (90, 241650), (100, 217485), (108, 201375), (125, 173988), (135, 161100), (150, 144990), (162, 134250), (179, 121500), (180, 120825), (225, 96660), (243, 89500), (250, 86994), (270, 80550), (300, 72495), (324, 67125), (358, 60750), (375, 57996), (405, 53700), (450, 48330), (486, 44750), (500, 43497), (537, 40500), (540, 40275), (675, 32220), (716, 30375), (750, 28998), (810, 26850), (895, 24300), (900, 24165), (972, 22375), (1074, 20250), (1125, 19332), (1215, 17900), (1350, 16110), (1500, 14499), (1611, 13500), (1620, 13425), (1790, 12150), (2025, 10740), (2148, 10125), (2250, 9666), (2430, 8950), (2685, 8100), (2700, 8055), (3222, 6750), (3375, 6444), (3580, 6075), (4050, 5370), (4475, 4860), (4500, 4833)]