21250080

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4919}}^1$

素因数の和:4943

約数の個数: 96

約数和(自身を含む): 74390400

約数和(自身を除く): 53140320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4919, 9838, 14757, 19676, 24595, 29514, 39352, 44271, 49190, 59028, 73785, 78704, 88542, 98380, 118056, 132813, 147570, 157408, 177084, 196760, 221355, 236112, 265626, 295140, 354168, 393520, 442710, 472224, 531252, 590280, 664065, 708336, 787040, 885420, 1062504, 1180560, 1328130, 1416672, 1770840, 2125008, 2361120, 2656260, 3541680, 4250016, 5312520, 7083360, 10625040, 21250080]

約数ペア:

[(1, 21250080), (2, 10625040), (3, 7083360), (4, 5312520), (5, 4250016), (6, 3541680), (8, 2656260), (9, 2361120), (10, 2125008), (12, 1770840), (15, 1416672), (16, 1328130), (18, 1180560), (20, 1062504), (24, 885420), (27, 787040), (30, 708336), (32, 664065), (36, 590280), (40, 531252), (45, 472224), (48, 442710), (54, 393520), (60, 354168), (72, 295140), (80, 265626), (90, 236112), (96, 221355), (108, 196760), (120, 177084), (135, 157408), (144, 147570), (160, 132813), (180, 118056), (216, 98380), (240, 88542), (270, 78704), (288, 73785), (360, 59028), (432, 49190), (480, 44271), (540, 39352), (720, 29514), (864, 24595), (1080, 19676), (1440, 14757), (2160, 9838), (4320, 4919)]