20157461720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{190093}}^1$

素因数の和:190356

約数の個数: 64

約数和(自身を含む): 49682967840

約数和(自身を除く): 29525506120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 241, 440, 482, 964, 1205, 1928, 2410, 2651, 4820, 5302, 9640, 10604, 13255, 21208, 26510, 53020, 106040, 190093, 380186, 760372, 950465, 1520744, 1900930, 2091023, 3801860, 4182046, 7603720, 8364092, 10455115, 16728184, 20910230, 41820460, 45812413, 83640920, 91624826, 183249652, 229062065, 366499304, 458124130, 503936543, 916248260, 1007873086, 1832496520, 2015746172, 2519682715, 4031492344, 5039365430, 10078730860, 20157461720]

約数ペア:

[(1, 20157461720), (2, 10078730860), (4, 5039365430), (5, 4031492344), (8, 2519682715), (10, 2015746172), (11, 1832496520), (20, 1007873086), (22, 916248260), (40, 503936543), (44, 458124130), (55, 366499304), (88, 229062065), (110, 183249652), (220, 91624826), (241, 83640920), (440, 45812413), (482, 41820460), (964, 20910230), (1205, 16728184), (1928, 10455115), (2410, 8364092), (2651, 7603720), (4820, 4182046), (5302, 3801860), (9640, 2091023), (10604, 1900930), (13255, 1520744), (21208, 950465), (26510, 760372), (53020, 380186), (106040, 190093)]