989555588

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 2222244864

約数和(自身を除く): 1232689276

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 49, 62, 73, 92, 97, 98, 124, 146, 161, 194, 196, 217, 292, 322, 388, 434, 511, 644, 679, 713, 868, 1022, 1127, 1358, 1426, 1519, 1679, 2044, 2231, 2254, 2263, 2716, 2852, 3007, 3038, 3358, 3577, 4462, 4508, 4526, 4753, 4991, 6014, 6076, 6716, 7081, 7154, 8924, 9052, 9506, 9982, 11753, 12028, 14162, 14308, 15617, 15841, 19012, 19964, 21049, 23506, 28324, 31234, 31682, 34937, 42098, 47012, 49567, 52049, 62468, 63364, 69161, 69874, 82271, 84196, 99134, 104098, 109319, 110887, 138322, 139748, 147343, 162863, 164542, 198268, 208196, 218638, 219511, 221774, 276644, 294686, 325726, 329084, 346969, 364343, 437276, 439022, 443548, 484127, 589372, 651452, 693938, 728686, 878044, 968254, 1140041, 1387876, 1457372, 1536577, 1936508, 2280082, 2550401, 3073154, 3388889, 4560164, 5048753, 5100802, 6146308, 6777778, 7980287, 10097506, 10201604, 10756039, 13555556, 15960574, 20195012, 21512078, 31921148, 35341271, 43024156, 70682542, 141365084, 247388897, 494777794, 989555588]

約数ペア:

[(1, 989555588), (2, 494777794), (4, 247388897), (7, 141365084), (14, 70682542), (23, 43024156), (28, 35341271), (31, 31921148), (46, 21512078), (49, 20195012), (62, 15960574), (73, 13555556), (92, 10756039), (97, 10201604), (98, 10097506), (124, 7980287), (146, 6777778), (161, 6146308), (194, 5100802), (196, 5048753), (217, 4560164), (292, 3388889), (322, 3073154), (388, 2550401), (434, 2280082), (511, 1936508), (644, 1536577), (679, 1457372), (713, 1387876), (868, 1140041), (1022, 968254), (1127, 878044), (1358, 728686), (1426, 693938), (1519, 651452), (1679, 589372), (2044, 484127), (2231, 443548), (2254, 439022), (2263, 437276), (2716, 364343), (2852, 346969), (3007, 329084), (3038, 325726), (3358, 294686), (3577, 276644), (4462, 221774), (4508, 219511), (4526, 218638), (4753, 208196), (4991, 198268), (6014, 164542), (6076, 162863), (6716, 147343), (7081, 139748), (7154, 138322), (8924, 110887), (9052, 109319), (9506, 104098), (9982, 99134), (11753, 84196), (12028, 82271), (14162, 69874), (14308, 69161), (15617, 63364), (15841, 62468), (19012, 52049), (19964, 49567), (21049, 47012), (23506, 42098), (28324, 34937), (31234, 31682)]