20289312720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{249377}}^1$

素因数の和:249509

約数の個数: 120

約数和(自身を含む): 68741544456

約数和(自身を除く): 48452231736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 113, 120, 144, 180, 226, 240, 339, 360, 452, 565, 678, 720, 904, 1017, 1130, 1356, 1695, 1808, 2034, 2260, 2712, 3390, 4068, 4520, 5085, 5424, 6780, 8136, 9040, 10170, 13560, 16272, 20340, 27120, 40680, 81360, 249377, 498754, 748131, 997508, 1246885, 1496262, 1995016, 2244393, 2493770, 2992524, 3740655, 3990032, 4488786, 4987540, 5985048, 7481310, 8977572, 9975080, 11221965, 11970096, 14962620, 17955144, 19950160, 22443930, 28179601, 29925240, 35910288, 44887860, 56359202, 59850480, 84538803, 89775720, 112718404, 140898005, 169077606, 179551440, 225436808, 253616409, 281796010, 338155212, 422694015, 450873616, 507232818, 563592020, 676310424, 845388030, 1014465636, 1127184040, 1268082045, 1352620848, 1690776060, 2028931272, 2254368080, 2536164090, 3381552120, 4057862544, 5072328180, 6763104240, 10144656360, 20289312720]

約数ペア:

[(1, 20289312720), (2, 10144656360), (3, 6763104240), (4, 5072328180), (5, 4057862544), (6, 3381552120), (8, 2536164090), (9, 2254368080), (10, 2028931272), (12, 1690776060), (15, 1352620848), (16, 1268082045), (18, 1127184040), (20, 1014465636), (24, 845388030), (30, 676310424), (36, 563592020), (40, 507232818), (45, 450873616), (48, 422694015), (60, 338155212), (72, 281796010), (80, 253616409), (90, 225436808), (113, 179551440), (120, 169077606), (144, 140898005), (180, 112718404), (226, 89775720), (240, 84538803), (339, 59850480), (360, 56359202), (452, 44887860), (565, 35910288), (678, 29925240), (720, 28179601), (904, 22443930), (1017, 19950160), (1130, 17955144), (1356, 14962620), (1695, 11970096), (1808, 11221965), (2034, 9975080), (2260, 8977572), (2712, 7481310), (3390, 5985048), (4068, 4987540), (4520, 4488786), (5085, 3990032), (5424, 3740655), (6780, 2992524), (8136, 2493770), (9040, 2244393), (10170, 1995016), (13560, 1496262), (16272, 1246885), (20340, 997508), (27120, 748131), (40680, 498754), (81360, 249377)]