21150000

素因数分解:

$2^4\times 3^2\times 5^5\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 180

約数和(自身を含む): 75557664

約数和(自身を除く): 54407664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 47, 48, 50, 60, 72, 75, 80, 90, 94, 100, 120, 125, 141, 144, 150, 180, 188, 200, 225, 235, 240, 250, 282, 300, 360, 375, 376, 400, 423, 450, 470, 500, 564, 600, 625, 705, 720, 750, 752, 846, 900, 940, 1000, 1125, 1128, 1175, 1200, 1250, 1410, 1500, 1692, 1800, 1875, 1880, 2000, 2115, 2250, 2256, 2350, 2500, 2820, 3000, 3125, 3384, 3525, 3600, 3750, 3760, 4230, 4500, 4700, 5000, 5625, 5640, 5875, 6000, 6250, 6768, 7050, 7500, 8460, 9000, 9375, 9400, 10000, 10575, 11250, 11280, 11750, 12500, 14100, 15000, 16920, 17625, 18000, 18750, 18800, 21150, 22500, 23500, 25000, 28125, 28200, 29375, 30000, 33840, 35250, 37500, 42300, 45000, 47000, 50000, 52875, 56250, 56400, 58750, 70500, 75000, 84600, 88125, 90000, 94000, 105750, 112500, 117500, 141000, 146875, 150000, 169200, 176250, 211500, 225000, 235000, 264375, 282000, 293750, 352500, 423000, 440625, 450000, 470000, 528750, 587500, 705000, 846000, 881250, 1057500, 1175000, 1321875, 1410000, 1762500, 2115000, 2350000, 2643750, 3525000, 4230000, 5287500, 7050000, 10575000, 21150000]

約数ペア:

[(1, 21150000), (2, 10575000), (3, 7050000), (4, 5287500), (5, 4230000), (6, 3525000), (8, 2643750), (9, 2350000), (10, 2115000), (12, 1762500), (15, 1410000), (16, 1321875), (18, 1175000), (20, 1057500), (24, 881250), (25, 846000), (30, 705000), (36, 587500), (40, 528750), (45, 470000), (47, 450000), (48, 440625), (50, 423000), (60, 352500), (72, 293750), (75, 282000), (80, 264375), (90, 235000), (94, 225000), (100, 211500), (120, 176250), (125, 169200), (141, 150000), (144, 146875), (150, 141000), (180, 117500), (188, 112500), (200, 105750), (225, 94000), (235, 90000), (240, 88125), (250, 84600), (282, 75000), (300, 70500), (360, 58750), (375, 56400), (376, 56250), (400, 52875), (423, 50000), (450, 47000), (470, 45000), (500, 42300), (564, 37500), (600, 35250), (625, 33840), (705, 30000), (720, 29375), (750, 28200), (752, 28125), (846, 25000), (900, 23500), (940, 22500), (1000, 21150), (1125, 18800), (1128, 18750), (1175, 18000), (1200, 17625), (1250, 16920), (1410, 15000), (1500, 14100), (1692, 12500), (1800, 11750), (1875, 11280), (1880, 11250), (2000, 10575), (2115, 10000), (2250, 9400), (2256, 9375), (2350, 9000), (2500, 8460), (2820, 7500), (3000, 7050), (3125, 6768), (3384, 6250), (3525, 6000), (3600, 5875), (3750, 5640), (3760, 5625), (4230, 5000), (4500, 4700)]