217996688

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 120

約数和(自身を含む): 538199928

約数和(自身を除く): 320203240

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 73, 91, 98, 104, 112, 146, 182, 196, 208, 292, 293, 364, 392, 511, 584, 586, 637, 728, 784, 949, 1022, 1168, 1172, 1274, 1456, 1898, 2044, 2051, 2344, 2548, 3577, 3796, 3809, 4088, 4102, 4688, 5096, 6643, 7154, 7592, 7618, 8176, 8204, 10192, 13286, 14308, 14357, 15184, 15236, 16408, 21389, 26572, 26663, 28616, 28714, 30472, 32816, 42778, 46501, 53144, 53326, 57232, 57428, 60944, 85556, 93002, 106288, 106652, 114856, 149723, 171112, 186004, 186641, 213304, 229712, 278057, 299446, 342224, 372008, 373282, 426608, 556114, 598892, 744016, 746564, 1048061, 1112228, 1197784, 1493128, 1946399, 2096122, 2224456, 2395568, 2986256, 3892798, 4192244, 4448912, 7785596, 8384488, 13624793, 15571192, 16768976, 27249586, 31142384, 54499172, 108998344, 217996688]

約数ペア:

[(1, 217996688), (2, 108998344), (4, 54499172), (7, 31142384), (8, 27249586), (13, 16768976), (14, 15571192), (16, 13624793), (26, 8384488), (28, 7785596), (49, 4448912), (52, 4192244), (56, 3892798), (73, 2986256), (91, 2395568), (98, 2224456), (104, 2096122), (112, 1946399), (146, 1493128), (182, 1197784), (196, 1112228), (208, 1048061), (292, 746564), (293, 744016), (364, 598892), (392, 556114), (511, 426608), (584, 373282), (586, 372008), (637, 342224), (728, 299446), (784, 278057), (949, 229712), (1022, 213304), (1168, 186641), (1172, 186004), (1274, 171112), (1456, 149723), (1898, 114856), (2044, 106652), (2051, 106288), (2344, 93002), (2548, 85556), (3577, 60944), (3796, 57428), (3809, 57232), (4088, 53326), (4102, 53144), (4688, 46501), (5096, 42778), (6643, 32816), (7154, 30472), (7592, 28714), (7618, 28616), (8176, 26663), (8204, 26572), (10192, 21389), (13286, 16408), (14308, 15236), (14357, 15184)]