164251640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 442368000

約数和(自身を除く): 278116360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 127, 140, 149, 155, 217, 248, 254, 280, 298, 310, 434, 508, 596, 620, 635, 745, 868, 889, 1016, 1043, 1085, 1192, 1240, 1270, 1490, 1736, 1778, 2086, 2170, 2540, 2980, 3556, 3937, 4172, 4340, 4445, 4619, 5080, 5215, 5960, 7112, 7874, 8344, 8680, 8890, 9238, 10430, 15748, 17780, 18476, 18923, 19685, 20860, 23095, 27559, 31496, 32333, 35560, 36952, 37846, 39370, 41720, 46190, 55118, 64666, 75692, 78740, 92380, 94615, 110236, 129332, 132461, 137795, 151384, 157480, 161665, 184760, 189230, 220472, 258664, 264922, 275590, 323330, 378460, 529844, 551180, 586613, 646660, 662305, 756920, 1059688, 1102360, 1173226, 1293320, 1324610, 2346452, 2649220, 2933065, 4106291, 4692904, 5298440, 5866130, 8212582, 11732260, 16425164, 20531455, 23464520, 32850328, 41062910, 82125820, 164251640]

約数ペア:

[(1, 164251640), (2, 82125820), (4, 41062910), (5, 32850328), (7, 23464520), (8, 20531455), (10, 16425164), (14, 11732260), (20, 8212582), (28, 5866130), (31, 5298440), (35, 4692904), (40, 4106291), (56, 2933065), (62, 2649220), (70, 2346452), (124, 1324610), (127, 1293320), (140, 1173226), (149, 1102360), (155, 1059688), (217, 756920), (248, 662305), (254, 646660), (280, 586613), (298, 551180), (310, 529844), (434, 378460), (508, 323330), (596, 275590), (620, 264922), (635, 258664), (745, 220472), (868, 189230), (889, 184760), (1016, 161665), (1043, 157480), (1085, 151384), (1192, 137795), (1240, 132461), (1270, 129332), (1490, 110236), (1736, 94615), (1778, 92380), (2086, 78740), (2170, 75692), (2540, 64666), (2980, 55118), (3556, 46190), (3937, 41720), (4172, 39370), (4340, 37846), (4445, 36952), (4619, 35560), (5080, 32333), (5215, 31496), (5960, 27559), (7112, 23095), (7874, 20860), (8344, 19685), (8680, 18923), (8890, 18476), (9238, 17780), (10430, 15748)]