31216500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{991}}^1$

素因数の和:1023

約数の個数: 144

約数和(自身を含む): 112659456

約数和(自身を除く): 81442956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 991, 1050, 1125, 1260, 1500, 1575, 1750, 1982, 2100, 2250, 2625, 2973, 3150, 3500, 3964, 4500, 4955, 5250, 5946, 6300, 6937, 7875, 8919, 9910, 10500, 11892, 13874, 14865, 15750, 17838, 19820, 20811, 24775, 27748, 29730, 31500, 34685, 35676, 41622, 44595, 49550, 59460, 62433, 69370, 74325, 83244, 89190, 99100, 104055, 123875, 124866, 138740, 148650, 173425, 178380, 208110, 222975, 247750, 249732, 297300, 312165, 346850, 371625, 416220, 445950, 495500, 520275, 624330, 693700, 743250, 867125, 891900, 1040550, 1114875, 1248660, 1486500, 1560825, 1734250, 2081100, 2229750, 2601375, 3121650, 3468500, 4459500, 5202750, 6243300, 7804125, 10405500, 15608250, 31216500]

約数ペア:

[(1, 31216500), (2, 15608250), (3, 10405500), (4, 7804125), (5, 6243300), (6, 5202750), (7, 4459500), (9, 3468500), (10, 3121650), (12, 2601375), (14, 2229750), (15, 2081100), (18, 1734250), (20, 1560825), (21, 1486500), (25, 1248660), (28, 1114875), (30, 1040550), (35, 891900), (36, 867125), (42, 743250), (45, 693700), (50, 624330), (60, 520275), (63, 495500), (70, 445950), (75, 416220), (84, 371625), (90, 346850), (100, 312165), (105, 297300), (125, 249732), (126, 247750), (140, 222975), (150, 208110), (175, 178380), (180, 173425), (210, 148650), (225, 138740), (250, 124866), (252, 123875), (300, 104055), (315, 99100), (350, 89190), (375, 83244), (420, 74325), (450, 69370), (500, 62433), (525, 59460), (630, 49550), (700, 44595), (750, 41622), (875, 35676), (900, 34685), (991, 31500), (1050, 29730), (1125, 27748), (1260, 24775), (1500, 20811), (1575, 19820), (1750, 17838), (1982, 15750), (2100, 14865), (2250, 13874), (2625, 11892), (2973, 10500), (3150, 9910), (3500, 8919), (3964, 7875), (4500, 6937), (4955, 6300), (5250, 5946)]