20247920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 62138880

約数和(自身を除く): 41890960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 133, 140, 152, 154, 173, 176, 190, 209, 220, 266, 280, 304, 308, 346, 380, 385, 418, 440, 532, 560, 616, 665, 692, 760, 770, 836, 865, 880, 1045, 1064, 1211, 1232, 1330, 1384, 1463, 1520, 1540, 1672, 1730, 1903, 2090, 2128, 2422, 2660, 2768, 2926, 3080, 3287, 3344, 3460, 3806, 4180, 4844, 5320, 5852, 6055, 6160, 6574, 6920, 7315, 7612, 8360, 9515, 9688, 10640, 11704, 12110, 13148, 13321, 13840, 14630, 15224, 16435, 16720, 19030, 19376, 23009, 23408, 24220, 26296, 26642, 29260, 30448, 32870, 36157, 38060, 46018, 48440, 52592, 53284, 58520, 65740, 66605, 72314, 76120, 92036, 96880, 106568, 115045, 117040, 131480, 133210, 144628, 152240, 180785, 184072, 213136, 230090, 253099, 262960, 266420, 289256, 361570, 368144, 460180, 506198, 532840, 578512, 723140, 920360, 1012396, 1065680, 1265495, 1446280, 1840720, 2024792, 2530990, 2892560, 4049584, 5061980, 10123960, 20247920]

約数ペア:

[(1, 20247920), (2, 10123960), (4, 5061980), (5, 4049584), (7, 2892560), (8, 2530990), (10, 2024792), (11, 1840720), (14, 1446280), (16, 1265495), (19, 1065680), (20, 1012396), (22, 920360), (28, 723140), (35, 578512), (38, 532840), (40, 506198), (44, 460180), (55, 368144), (56, 361570), (70, 289256), (76, 266420), (77, 262960), (80, 253099), (88, 230090), (95, 213136), (110, 184072), (112, 180785), (133, 152240), (140, 144628), (152, 133210), (154, 131480), (173, 117040), (176, 115045), (190, 106568), (209, 96880), (220, 92036), (266, 76120), (280, 72314), (304, 66605), (308, 65740), (346, 58520), (380, 53284), (385, 52592), (418, 48440), (440, 46018), (532, 38060), (560, 36157), (616, 32870), (665, 30448), (692, 29260), (760, 26642), (770, 26296), (836, 24220), (865, 23408), (880, 23009), (1045, 19376), (1064, 19030), (1211, 16720), (1232, 16435), (1330, 15224), (1384, 14630), (1463, 13840), (1520, 13321), (1540, 13148), (1672, 12110), (1730, 11704), (1903, 10640), (2090, 9688), (2128, 9515), (2422, 8360), (2660, 7612), (2768, 7315), (2926, 6920), (3080, 6574), (3287, 6160), (3344, 6055), (3460, 5852), (3806, 5320), (4180, 4844)]