21204480

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 160

約数和(自身を含む): 74245248

約数和(自身を除く): 53040768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 251, 256, 264, 320, 330, 352, 384, 440, 480, 502, 512, 528, 640, 660, 704, 753, 768, 880, 960, 1004, 1056, 1255, 1280, 1320, 1408, 1506, 1536, 1760, 1920, 2008, 2112, 2510, 2560, 2640, 2761, 2816, 3012, 3520, 3765, 3840, 4016, 4224, 5020, 5280, 5522, 5632, 6024, 7040, 7530, 7680, 8032, 8283, 8448, 10040, 10560, 11044, 12048, 13805, 14080, 15060, 16064, 16566, 16896, 20080, 21120, 22088, 24096, 27610, 28160, 30120, 32128, 33132, 40160, 41415, 42240, 44176, 48192, 55220, 60240, 64256, 66264, 80320, 82830, 84480, 88352, 96384, 110440, 120480, 128512, 132528, 160640, 165660, 176704, 192768, 220880, 240960, 265056, 321280, 331320, 353408, 385536, 441760, 481920, 530112, 642560, 662640, 706816, 883520, 963840, 1060224, 1325280, 1413632, 1767040, 1927680, 2120448, 2650560, 3534080, 4240896, 5301120, 7068160, 10602240, 21204480]

約数ペア:

[(1, 21204480), (2, 10602240), (3, 7068160), (4, 5301120), (5, 4240896), (6, 3534080), (8, 2650560), (10, 2120448), (11, 1927680), (12, 1767040), (15, 1413632), (16, 1325280), (20, 1060224), (22, 963840), (24, 883520), (30, 706816), (32, 662640), (33, 642560), (40, 530112), (44, 481920), (48, 441760), (55, 385536), (60, 353408), (64, 331320), (66, 321280), (80, 265056), (88, 240960), (96, 220880), (110, 192768), (120, 176704), (128, 165660), (132, 160640), (160, 132528), (165, 128512), (176, 120480), (192, 110440), (220, 96384), (240, 88352), (251, 84480), (256, 82830), (264, 80320), (320, 66264), (330, 64256), (352, 60240), (384, 55220), (440, 48192), (480, 44176), (502, 42240), (512, 41415), (528, 40160), (640, 33132), (660, 32128), (704, 30120), (753, 28160), (768, 27610), (880, 24096), (960, 22088), (1004, 21120), (1056, 20080), (1255, 16896), (1280, 16566), (1320, 16064), (1408, 15060), (1506, 14080), (1536, 13805), (1760, 12048), (1920, 11044), (2008, 10560), (2112, 10040), (2510, 8448), (2560, 8283), (2640, 8032), (2761, 7680), (2816, 7530), (3012, 7040), (3520, 6024), (3765, 5632), (3840, 5522), (4016, 5280), (4224, 5020)]