20172542440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{1607}}^1$

素因数の和:1919

約数の個数: 128

約数和(自身を含む): 48625920000

約数和(自身を除く): 28453377560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 199, 332, 380, 398, 415, 664, 760, 796, 830, 995, 1577, 1592, 1607, 1660, 1990, 3154, 3214, 3320, 3781, 3980, 6308, 6428, 7562, 7885, 7960, 8035, 12616, 12856, 15124, 15770, 16070, 16517, 18905, 30248, 30533, 31540, 32140, 33034, 37810, 61066, 63080, 64280, 66068, 75620, 82585, 122132, 132136, 133381, 151240, 152665, 165170, 244264, 266762, 305330, 313823, 319793, 330340, 533524, 610660, 627646, 639586, 660680, 666905, 1067048, 1221320, 1255292, 1279172, 1333810, 1569115, 1598965, 2510584, 2534239, 2558344, 2667620, 3138230, 3197930, 5068478, 5335240, 6076067, 6276460, 6395860, 10136956, 12152134, 12552920, 12671195, 12791720, 20273912, 24304268, 25342390, 26542819, 30380335, 48608536, 50684780, 53085638, 60760670, 101369560, 106171276, 121521340, 132714095, 212342552, 243042680, 265428190, 504313561, 530856380, 1008627122, 1061712760, 2017254244, 2521567805, 4034508488, 5043135610, 10086271220, 20172542440]

約数ペア:

[(1, 20172542440), (2, 10086271220), (4, 5043135610), (5, 4034508488), (8, 2521567805), (10, 2017254244), (19, 1061712760), (20, 1008627122), (38, 530856380), (40, 504313561), (76, 265428190), (83, 243042680), (95, 212342552), (152, 132714095), (166, 121521340), (190, 106171276), (199, 101369560), (332, 60760670), (380, 53085638), (398, 50684780), (415, 48608536), (664, 30380335), (760, 26542819), (796, 25342390), (830, 24304268), (995, 20273912), (1577, 12791720), (1592, 12671195), (1607, 12552920), (1660, 12152134), (1990, 10136956), (3154, 6395860), (3214, 6276460), (3320, 6076067), (3781, 5335240), (3980, 5068478), (6308, 3197930), (6428, 3138230), (7562, 2667620), (7885, 2558344), (7960, 2534239), (8035, 2510584), (12616, 1598965), (12856, 1569115), (15124, 1333810), (15770, 1279172), (16070, 1255292), (16517, 1221320), (18905, 1067048), (30248, 666905), (30533, 660680), (31540, 639586), (32140, 627646), (33034, 610660), (37810, 533524), (61066, 330340), (63080, 319793), (64280, 313823), (66068, 305330), (75620, 266762), (82585, 244264), (122132, 165170), (132136, 152665), (133381, 151240)]