20990400

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{4373}}^1$

素因数の和:4398

約数の個数: 84

約数和(自身を含む): 68881752

約数和(自身を除く): 47891352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 150, 160, 192, 200, 240, 300, 320, 400, 480, 600, 800, 960, 1200, 1600, 2400, 4373, 4800, 8746, 13119, 17492, 21865, 26238, 34984, 43730, 52476, 65595, 69968, 87460, 104952, 109325, 131190, 139936, 174920, 209904, 218650, 262380, 279872, 327975, 349840, 419808, 437300, 524760, 655950, 699680, 839616, 874600, 1049520, 1311900, 1399360, 1749200, 2099040, 2623800, 3498400, 4198080, 5247600, 6996800, 10495200, 20990400]

約数ペア:

[(1, 20990400), (2, 10495200), (3, 6996800), (4, 5247600), (5, 4198080), (6, 3498400), (8, 2623800), (10, 2099040), (12, 1749200), (15, 1399360), (16, 1311900), (20, 1049520), (24, 874600), (25, 839616), (30, 699680), (32, 655950), (40, 524760), (48, 437300), (50, 419808), (60, 349840), (64, 327975), (75, 279872), (80, 262380), (96, 218650), (100, 209904), (120, 174920), (150, 139936), (160, 131190), (192, 109325), (200, 104952), (240, 87460), (300, 69968), (320, 65595), (400, 52476), (480, 43730), (600, 34984), (800, 26238), (960, 21865), (1200, 17492), (1600, 13119), (2400, 8746), (4373, 4800)]