20857320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:280

約数の個数: 192

約数和(自身を含む): 77500800

約数和(自身を除く): 56643480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 23, 24, 30, 33, 36, 40, 44, 45, 46, 55, 60, 66, 69, 72, 88, 90, 92, 99, 110, 115, 120, 132, 138, 165, 180, 184, 198, 207, 220, 229, 230, 253, 264, 276, 330, 345, 360, 396, 414, 440, 458, 460, 495, 506, 552, 660, 687, 690, 759, 792, 828, 916, 920, 990, 1012, 1035, 1145, 1265, 1320, 1374, 1380, 1518, 1656, 1832, 1980, 2024, 2061, 2070, 2277, 2290, 2519, 2530, 2748, 2760, 3036, 3435, 3795, 3960, 4122, 4140, 4554, 4580, 5038, 5060, 5267, 5496, 6072, 6870, 7557, 7590, 8244, 8280, 9108, 9160, 10076, 10120, 10305, 10534, 11385, 12595, 13740, 15114, 15180, 15801, 16488, 18216, 20152, 20610, 21068, 22671, 22770, 25190, 26335, 27480, 30228, 30360, 31602, 37785, 41220, 42136, 45342, 45540, 47403, 50380, 52670, 57937, 60456, 63204, 75570, 79005, 82440, 90684, 91080, 94806, 100760, 105340, 113355, 115874, 126408, 151140, 158010, 173811, 181368, 189612, 210680, 226710, 231748, 237015, 289685, 302280, 316020, 347622, 379224, 453420, 463496, 474030, 521433, 579370, 632040, 695244, 869055, 906840, 948060, 1042866, 1158740, 1390488, 1738110, 1896120, 2085732, 2317480, 2607165, 3476220, 4171464, 5214330, 6952440, 10428660, 20857320]

約数ペア:

[(1, 20857320), (2, 10428660), (3, 6952440), (4, 5214330), (5, 4171464), (6, 3476220), (8, 2607165), (9, 2317480), (10, 2085732), (11, 1896120), (12, 1738110), (15, 1390488), (18, 1158740), (20, 1042866), (22, 948060), (23, 906840), (24, 869055), (30, 695244), (33, 632040), (36, 579370), (40, 521433), (44, 474030), (45, 463496), (46, 453420), (55, 379224), (60, 347622), (66, 316020), (69, 302280), (72, 289685), (88, 237015), (90, 231748), (92, 226710), (99, 210680), (110, 189612), (115, 181368), (120, 173811), (132, 158010), (138, 151140), (165, 126408), (180, 115874), (184, 113355), (198, 105340), (207, 100760), (220, 94806), (229, 91080), (230, 90684), (253, 82440), (264, 79005), (276, 75570), (330, 63204), (345, 60456), (360, 57937), (396, 52670), (414, 50380), (440, 47403), (458, 45540), (460, 45342), (495, 42136), (506, 41220), (552, 37785), (660, 31602), (687, 30360), (690, 30228), (759, 27480), (792, 26335), (828, 25190), (916, 22770), (920, 22671), (990, 21068), (1012, 20610), (1035, 20152), (1145, 18216), (1265, 16488), (1320, 15801), (1374, 15180), (1380, 15114), (1518, 13740), (1656, 12595), (1832, 11385), (1980, 10534), (2024, 10305), (2061, 10120), (2070, 10076), (2277, 9160), (2290, 9108), (2519, 8280), (2530, 8244), (2748, 7590), (2760, 7557), (3036, 6870), (3435, 6072), (3795, 5496), (3960, 5267), (4122, 5060), (4140, 5038), (4554, 4580)]