21078000

素因数分解:

$2^4\times 3^2\times 5^3\times {\mathrm{1171}}^1$

素因数の和:1200

約数の個数: 120

約数和(自身を含む): 73681296

約数和(自身を除く): 52603296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 200, 225, 240, 250, 300, 360, 375, 400, 450, 500, 600, 720, 750, 900, 1000, 1125, 1171, 1200, 1500, 1800, 2000, 2250, 2342, 3000, 3513, 3600, 4500, 4684, 5855, 6000, 7026, 9000, 9368, 10539, 11710, 14052, 17565, 18000, 18736, 21078, 23420, 28104, 29275, 35130, 42156, 46840, 52695, 56208, 58550, 70260, 84312, 87825, 93680, 105390, 117100, 140520, 146375, 168624, 175650, 210780, 234200, 263475, 281040, 292750, 351300, 421560, 439125, 468400, 526950, 585500, 702600, 843120, 878250, 1053900, 1171000, 1317375, 1405200, 1756500, 2107800, 2342000, 2634750, 3513000, 4215600, 5269500, 7026000, 10539000, 21078000]

約数ペア:

[(1, 21078000), (2, 10539000), (3, 7026000), (4, 5269500), (5, 4215600), (6, 3513000), (8, 2634750), (9, 2342000), (10, 2107800), (12, 1756500), (15, 1405200), (16, 1317375), (18, 1171000), (20, 1053900), (24, 878250), (25, 843120), (30, 702600), (36, 585500), (40, 526950), (45, 468400), (48, 439125), (50, 421560), (60, 351300), (72, 292750), (75, 281040), (80, 263475), (90, 234200), (100, 210780), (120, 175650), (125, 168624), (144, 146375), (150, 140520), (180, 117100), (200, 105390), (225, 93680), (240, 87825), (250, 84312), (300, 70260), (360, 58550), (375, 56208), (400, 52695), (450, 46840), (500, 42156), (600, 35130), (720, 29275), (750, 28104), (900, 23420), (1000, 21078), (1125, 18736), (1171, 18000), (1200, 17565), (1500, 14052), (1800, 11710), (2000, 10539), (2250, 9368), (2342, 9000), (3000, 7026), (3513, 6000), (3600, 5855), (4500, 4684)]