19915200

素因数分解:

$2^6\times 3^3\times 5^2\times {\mathrm{461}}^1$

素因数の和:492

約数の個数: 168

約数和(自身を含む): 72755760

約数和(自身を除く): 52840560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 135, 144, 150, 160, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 360, 400, 432, 450, 461, 480, 540, 576, 600, 675, 720, 800, 864, 900, 922, 960, 1080, 1200, 1350, 1383, 1440, 1600, 1728, 1800, 1844, 2160, 2305, 2400, 2700, 2766, 2880, 3600, 3688, 4149, 4320, 4610, 4800, 5400, 5532, 6915, 7200, 7376, 8298, 8640, 9220, 10800, 11064, 11525, 12447, 13830, 14400, 14752, 16596, 18440, 20745, 21600, 22128, 23050, 24894, 27660, 29504, 33192, 34575, 36880, 41490, 43200, 44256, 46100, 49788, 55320, 62235, 66384, 69150, 73760, 82980, 88512, 92200, 99576, 103725, 110640, 124470, 132768, 138300, 147520, 165960, 184400, 199152, 207450, 221280, 248940, 265536, 276600, 311175, 331920, 368800, 398304, 414900, 442560, 497880, 553200, 622350, 663840, 737600, 796608, 829800, 995760, 1106400, 1244700, 1327680, 1659600, 1991520, 2212800, 2489400, 3319200, 3983040, 4978800, 6638400, 9957600, 19915200]

約数ペア:

[(1, 19915200), (2, 9957600), (3, 6638400), (4, 4978800), (5, 3983040), (6, 3319200), (8, 2489400), (9, 2212800), (10, 1991520), (12, 1659600), (15, 1327680), (16, 1244700), (18, 1106400), (20, 995760), (24, 829800), (25, 796608), (27, 737600), (30, 663840), (32, 622350), (36, 553200), (40, 497880), (45, 442560), (48, 414900), (50, 398304), (54, 368800), (60, 331920), (64, 311175), (72, 276600), (75, 265536), (80, 248940), (90, 221280), (96, 207450), (100, 199152), (108, 184400), (120, 165960), (135, 147520), (144, 138300), (150, 132768), (160, 124470), (180, 110640), (192, 103725), (200, 99576), (216, 92200), (225, 88512), (240, 82980), (270, 73760), (288, 69150), (300, 66384), (320, 62235), (360, 55320), (400, 49788), (432, 46100), (450, 44256), (461, 43200), (480, 41490), (540, 36880), (576, 34575), (600, 33192), (675, 29504), (720, 27660), (800, 24894), (864, 23050), (900, 22128), (922, 21600), (960, 20745), (1080, 18440), (1200, 16596), (1350, 14752), (1383, 14400), (1440, 13830), (1600, 12447), (1728, 11525), (1800, 11064), (1844, 10800), (2160, 9220), (2305, 8640), (2400, 8298), (2700, 7376), (2766, 7200), (2880, 6915), (3600, 5532), (3688, 5400), (4149, 4800), (4320, 4610)]