19933806880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{5381}}^1$

素因数の和:5559

約数の個数: 144

約数和(自身を含む): 51376636584

約数和(自身を除く): 31442829704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 137, 160, 169, 208, 260, 274, 338, 416, 520, 548, 676, 685, 845, 1040, 1096, 1352, 1370, 1690, 1781, 2080, 2192, 2704, 2740, 3380, 3562, 4384, 5381, 5408, 5480, 6760, 7124, 8905, 10762, 10960, 13520, 14248, 17810, 21524, 21920, 23153, 26905, 27040, 28496, 35620, 43048, 46306, 53810, 56992, 69953, 71240, 86096, 92612, 107620, 115765, 139906, 142480, 172192, 185224, 215240, 231530, 279812, 284960, 349765, 370448, 430480, 463060, 559624, 699530, 737197, 740896, 860960, 909389, 926120, 1119248, 1399060, 1474394, 1818778, 1852240, 2238496, 2798120, 2948788, 3637556, 3685985, 3704480, 4546945, 5596240, 5897576, 7275112, 7371970, 9093890, 9583561, 11192480, 11795152, 14550224, 14743940, 18187780, 19167122, 23590304, 29100448, 29487880, 36375560, 38334244, 47917805, 58975760, 72751120, 76668488, 95835610, 117951520, 124586293, 145502240, 153336976, 191671220, 249172586, 306673952, 383342440, 498345172, 622931465, 766684880, 996690344, 1245862930, 1533369760, 1993380688, 2491725860, 3986761376, 4983451720, 9966903440, 19933806880]

約数ペア:

[(1, 19933806880), (2, 9966903440), (4, 4983451720), (5, 3986761376), (8, 2491725860), (10, 1993380688), (13, 1533369760), (16, 1245862930), (20, 996690344), (26, 766684880), (32, 622931465), (40, 498345172), (52, 383342440), (65, 306673952), (80, 249172586), (104, 191671220), (130, 153336976), (137, 145502240), (160, 124586293), (169, 117951520), (208, 95835610), (260, 76668488), (274, 72751120), (338, 58975760), (416, 47917805), (520, 38334244), (548, 36375560), (676, 29487880), (685, 29100448), (845, 23590304), (1040, 19167122), (1096, 18187780), (1352, 14743940), (1370, 14550224), (1690, 11795152), (1781, 11192480), (2080, 9583561), (2192, 9093890), (2704, 7371970), (2740, 7275112), (3380, 5897576), (3562, 5596240), (4384, 4546945), (5381, 3704480), (5408, 3685985), (5480, 3637556), (6760, 2948788), (7124, 2798120), (8905, 2238496), (10762, 1852240), (10960, 1818778), (13520, 1474394), (14248, 1399060), (17810, 1119248), (21524, 926120), (21920, 909389), (23153, 860960), (26905, 740896), (27040, 737197), (28496, 699530), (35620, 559624), (43048, 463060), (46306, 430480), (53810, 370448), (56992, 349765), (69953, 284960), (71240, 279812), (86096, 231530), (92612, 215240), (107620, 185224), (115765, 172192), (139906, 142480)]