257586168

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:437

約数の個数: 128

約数和(自身を含む): 761080320

約数和(自身を除く): 503494152

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 56, 84, 86, 129, 168, 172, 181, 197, 258, 301, 344, 362, 394, 516, 543, 591, 602, 724, 788, 903, 1032, 1086, 1182, 1204, 1267, 1379, 1448, 1576, 1806, 2172, 2364, 2408, 2534, 2758, 3612, 3801, 4137, 4344, 4728, 5068, 5516, 7224, 7602, 7783, 8274, 8471, 10136, 11032, 15204, 15566, 16548, 16942, 23349, 25413, 30408, 31132, 33096, 33884, 35657, 46698, 50826, 54481, 59297, 62264, 67768, 71314, 93396, 101652, 106971, 108962, 118594, 142628, 163443, 177891, 186792, 203304, 213942, 217924, 237188, 249599, 285256, 326886, 355782, 427884, 435848, 474376, 499198, 653772, 711564, 748797, 855768, 998396, 1307544, 1423128, 1497594, 1533251, 1996792, 2995188, 3066502, 4599753, 5990376, 6133004, 9199506, 10732757, 12266008, 18399012, 21465514, 32198271, 36798024, 42931028, 64396542, 85862056, 128793084, 257586168]

約数ペア:

[(1, 257586168), (2, 128793084), (3, 85862056), (4, 64396542), (6, 42931028), (7, 36798024), (8, 32198271), (12, 21465514), (14, 18399012), (21, 12266008), (24, 10732757), (28, 9199506), (42, 6133004), (43, 5990376), (56, 4599753), (84, 3066502), (86, 2995188), (129, 1996792), (168, 1533251), (172, 1497594), (181, 1423128), (197, 1307544), (258, 998396), (301, 855768), (344, 748797), (362, 711564), (394, 653772), (516, 499198), (543, 474376), (591, 435848), (602, 427884), (724, 355782), (788, 326886), (903, 285256), (1032, 249599), (1086, 237188), (1182, 217924), (1204, 213942), (1267, 203304), (1379, 186792), (1448, 177891), (1576, 163443), (1806, 142628), (2172, 118594), (2364, 108962), (2408, 106971), (2534, 101652), (2758, 93396), (3612, 71314), (3801, 67768), (4137, 62264), (4344, 59297), (4728, 54481), (5068, 50826), (5516, 46698), (7224, 35657), (7602, 33884), (7783, 33096), (8274, 31132), (8471, 30408), (10136, 25413), (11032, 23349), (15204, 16942), (15566, 16548)]