638640912

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20887}}^1$

素因数の和:20925

約数の個数: 120

約数和(自身を含む): 2066909376

約数和(自身を除く): 1428268464

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 49, 52, 56, 78, 84, 91, 98, 104, 112, 147, 156, 168, 182, 196, 208, 273, 294, 312, 336, 364, 392, 546, 588, 624, 637, 728, 784, 1092, 1176, 1274, 1456, 1911, 2184, 2352, 2548, 3822, 4368, 5096, 7644, 10192, 15288, 20887, 30576, 41774, 62661, 83548, 125322, 146209, 167096, 250644, 271531, 292418, 334192, 438627, 501288, 543062, 584836, 814593, 877254, 1002576, 1023463, 1086124, 1169672, 1629186, 1754508, 1900717, 2046926, 2172248, 2339344, 3070389, 3258372, 3509016, 3801434, 4093852, 4344496, 5702151, 6140778, 6516744, 7018032, 7602868, 8187704, 11404302, 12281556, 13033488, 13305019, 15205736, 16375408, 22808604, 24563112, 26610038, 30411472, 39915057, 45617208, 49126224, 53220076, 79830114, 91234416, 106440152, 159660228, 212880304, 319320456, 638640912]

約数ペア:

[(1, 638640912), (2, 319320456), (3, 212880304), (4, 159660228), (6, 106440152), (7, 91234416), (8, 79830114), (12, 53220076), (13, 49126224), (14, 45617208), (16, 39915057), (21, 30411472), (24, 26610038), (26, 24563112), (28, 22808604), (39, 16375408), (42, 15205736), (48, 13305019), (49, 13033488), (52, 12281556), (56, 11404302), (78, 8187704), (84, 7602868), (91, 7018032), (98, 6516744), (104, 6140778), (112, 5702151), (147, 4344496), (156, 4093852), (168, 3801434), (182, 3509016), (196, 3258372), (208, 3070389), (273, 2339344), (294, 2172248), (312, 2046926), (336, 1900717), (364, 1754508), (392, 1629186), (546, 1169672), (588, 1086124), (624, 1023463), (637, 1002576), (728, 877254), (784, 814593), (1092, 584836), (1176, 543062), (1274, 501288), (1456, 438627), (1911, 334192), (2184, 292418), (2352, 271531), (2548, 250644), (3822, 167096), (4368, 146209), (5096, 125322), (7644, 83548), (10192, 62661), (15288, 41774), (20887, 30576)]