21482880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 69914880

約数和(自身を除く): 48432000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 128, 134, 160, 167, 192, 201, 240, 268, 320, 334, 335, 384, 402, 480, 501, 536, 640, 668, 670, 804, 835, 960, 1002, 1005, 1072, 1336, 1340, 1608, 1670, 1920, 2004, 2010, 2144, 2505, 2672, 2680, 3216, 3340, 4008, 4020, 4288, 5010, 5344, 5360, 6432, 6680, 8016, 8040, 8576, 10020, 10688, 10720, 11189, 12864, 13360, 16032, 16080, 20040, 21376, 21440, 22378, 25728, 26720, 32064, 32160, 33567, 40080, 42880, 44756, 53440, 55945, 64128, 64320, 67134, 80160, 89512, 106880, 111890, 128640, 134268, 160320, 167835, 179024, 223780, 268536, 320640, 335670, 358048, 447560, 537072, 671340, 716096, 895120, 1074144, 1342680, 1432192, 1790240, 2148288, 2685360, 3580480, 4296576, 5370720, 7160960, 10741440, 21482880]

約数ペア:

[(1, 21482880), (2, 10741440), (3, 7160960), (4, 5370720), (5, 4296576), (6, 3580480), (8, 2685360), (10, 2148288), (12, 1790240), (15, 1432192), (16, 1342680), (20, 1074144), (24, 895120), (30, 716096), (32, 671340), (40, 537072), (48, 447560), (60, 358048), (64, 335670), (67, 320640), (80, 268536), (96, 223780), (120, 179024), (128, 167835), (134, 160320), (160, 134268), (167, 128640), (192, 111890), (201, 106880), (240, 89512), (268, 80160), (320, 67134), (334, 64320), (335, 64128), (384, 55945), (402, 53440), (480, 44756), (501, 42880), (536, 40080), (640, 33567), (668, 32160), (670, 32064), (804, 26720), (835, 25728), (960, 22378), (1002, 21440), (1005, 21376), (1072, 20040), (1336, 16080), (1340, 16032), (1608, 13360), (1670, 12864), (1920, 11189), (2004, 10720), (2010, 10688), (2144, 10020), (2505, 8576), (2672, 8040), (2680, 8016), (3216, 6680), (3340, 6432), (4008, 5360), (4020, 5344), (4288, 5010)]