21845760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5689}}^1$

素因数の和:5713

約数の個数: 72

約数和(自身を含む): 69782160

約数和(自身を除く): 47936400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5689, 11378, 17067, 22756, 28445, 34134, 45512, 56890, 68268, 85335, 91024, 113780, 136536, 170670, 182048, 227560, 273072, 341340, 364096, 455120, 546144, 682680, 728192, 910240, 1092288, 1365360, 1456384, 1820480, 2184576, 2730720, 3640960, 4369152, 5461440, 7281920, 10922880, 21845760]

約数ペア:

[(1, 21845760), (2, 10922880), (3, 7281920), (4, 5461440), (5, 4369152), (6, 3640960), (8, 2730720), (10, 2184576), (12, 1820480), (15, 1456384), (16, 1365360), (20, 1092288), (24, 910240), (30, 728192), (32, 682680), (40, 546144), (48, 455120), (60, 364096), (64, 341340), (80, 273072), (96, 227560), (120, 182048), (128, 170670), (160, 136536), (192, 113780), (240, 91024), (256, 85335), (320, 68268), (384, 56890), (480, 45512), (640, 34134), (768, 28445), (960, 22756), (1280, 17067), (1920, 11378), (3840, 5689)]