21049200

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{1949}}^1$

素因数の和:1976

約数の個数: 120

約数和(自身を含む): 74958000

約数和(自身を除く): 53908800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 100, 108, 120, 135, 144, 150, 180, 200, 216, 225, 240, 270, 300, 360, 400, 432, 450, 540, 600, 675, 720, 900, 1080, 1200, 1350, 1800, 1949, 2160, 2700, 3600, 3898, 5400, 5847, 7796, 9745, 10800, 11694, 15592, 17541, 19490, 23388, 29235, 31184, 35082, 38980, 46776, 48725, 52623, 58470, 70164, 77960, 87705, 93552, 97450, 105246, 116940, 140328, 146175, 155920, 175410, 194900, 210492, 233880, 263115, 280656, 292350, 350820, 389800, 420984, 438525, 467760, 526230, 584700, 701640, 779600, 841968, 877050, 1052460, 1169400, 1315575, 1403280, 1754100, 2104920, 2338800, 2631150, 3508200, 4209840, 5262300, 7016400, 10524600, 21049200]

約数ペア:

[(1, 21049200), (2, 10524600), (3, 7016400), (4, 5262300), (5, 4209840), (6, 3508200), (8, 2631150), (9, 2338800), (10, 2104920), (12, 1754100), (15, 1403280), (16, 1315575), (18, 1169400), (20, 1052460), (24, 877050), (25, 841968), (27, 779600), (30, 701640), (36, 584700), (40, 526230), (45, 467760), (48, 438525), (50, 420984), (54, 389800), (60, 350820), (72, 292350), (75, 280656), (80, 263115), (90, 233880), (100, 210492), (108, 194900), (120, 175410), (135, 155920), (144, 146175), (150, 140328), (180, 116940), (200, 105246), (216, 97450), (225, 93552), (240, 87705), (270, 77960), (300, 70164), (360, 58470), (400, 52623), (432, 48725), (450, 46776), (540, 38980), (600, 35082), (675, 31184), (720, 29235), (900, 23388), (1080, 19490), (1200, 17541), (1350, 15592), (1800, 11694), (1949, 10800), (2160, 9745), (2700, 7796), (3600, 5847), (3898, 5400)]