21565920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:448

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 47018400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 179, 240, 251, 358, 480, 502, 537, 716, 753, 895, 1004, 1074, 1255, 1432, 1506, 1790, 2008, 2148, 2510, 2685, 2864, 3012, 3580, 3765, 4016, 4296, 5020, 5370, 5728, 6024, 7160, 7530, 8032, 8592, 10040, 10740, 12048, 14320, 15060, 17184, 20080, 21480, 24096, 28640, 30120, 40160, 42960, 44929, 60240, 85920, 89858, 120480, 134787, 179716, 224645, 269574, 359432, 449290, 539148, 673935, 718864, 898580, 1078296, 1347870, 1437728, 1797160, 2156592, 2695740, 3594320, 4313184, 5391480, 7188640, 10782960, 21565920]

約数ペア:

[(1, 21565920), (2, 10782960), (3, 7188640), (4, 5391480), (5, 4313184), (6, 3594320), (8, 2695740), (10, 2156592), (12, 1797160), (15, 1437728), (16, 1347870), (20, 1078296), (24, 898580), (30, 718864), (32, 673935), (40, 539148), (48, 449290), (60, 359432), (80, 269574), (96, 224645), (120, 179716), (160, 134787), (179, 120480), (240, 89858), (251, 85920), (358, 60240), (480, 44929), (502, 42960), (537, 40160), (716, 30120), (753, 28640), (895, 24096), (1004, 21480), (1074, 20080), (1255, 17184), (1432, 15060), (1506, 14320), (1790, 12048), (2008, 10740), (2148, 10040), (2510, 8592), (2685, 8032), (2864, 7530), (3012, 7160), (3580, 6024), (3765, 5728), (4016, 5370), (4296, 5020)]