20699056

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 49282560

約数和(自身を除く): 28583504

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 71, 76, 112, 133, 137, 142, 152, 266, 274, 284, 304, 497, 532, 548, 568, 959, 994, 1064, 1096, 1136, 1349, 1918, 1988, 2128, 2192, 2603, 2698, 3836, 3976, 5206, 5396, 7672, 7952, 9443, 9727, 10412, 10792, 15344, 18221, 18886, 19454, 20824, 21584, 36442, 37772, 38908, 41648, 68089, 72884, 75544, 77816, 136178, 145768, 151088, 155632, 184813, 272356, 291536, 369626, 544712, 739252, 1089424, 1293691, 1478504, 2587382, 2957008, 5174764, 10349528, 20699056]

約数ペア:

[(1, 20699056), (2, 10349528), (4, 5174764), (7, 2957008), (8, 2587382), (14, 1478504), (16, 1293691), (19, 1089424), (28, 739252), (38, 544712), (56, 369626), (71, 291536), (76, 272356), (112, 184813), (133, 155632), (137, 151088), (142, 145768), (152, 136178), (266, 77816), (274, 75544), (284, 72884), (304, 68089), (497, 41648), (532, 38908), (548, 37772), (568, 36442), (959, 21584), (994, 20824), (1064, 19454), (1096, 18886), (1136, 18221), (1349, 15344), (1918, 10792), (1988, 10412), (2128, 9727), (2192, 9443), (2603, 7952), (2698, 7672), (3836, 5396), (3976, 5206)]