81721992

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 239500800

約数和(自身を除く): 157778808

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 68, 88, 102, 131, 132, 136, 139, 187, 204, 262, 264, 278, 374, 393, 408, 417, 524, 556, 561, 748, 786, 834, 1048, 1112, 1122, 1441, 1496, 1529, 1572, 1668, 2227, 2244, 2363, 2882, 3058, 3144, 3336, 4323, 4454, 4488, 4587, 4726, 5764, 6116, 6681, 7089, 8646, 8908, 9174, 9452, 11528, 12232, 13362, 14178, 17292, 17816, 18209, 18348, 18904, 24497, 25993, 26724, 28356, 34584, 36418, 36696, 48994, 51986, 53448, 54627, 56712, 72836, 73491, 77979, 97988, 103972, 109254, 145672, 146982, 155958, 195976, 200299, 207944, 218508, 293964, 309553, 311916, 400598, 437016, 587928, 600897, 619106, 623832, 801196, 928659, 1201794, 1238212, 1602392, 1857318, 2403588, 2476424, 3405083, 3714636, 4807176, 6810166, 7429272, 10215249, 13620332, 20430498, 27240664, 40860996, 81721992]

約数ペア:

[(1, 81721992), (2, 40860996), (3, 27240664), (4, 20430498), (6, 13620332), (8, 10215249), (11, 7429272), (12, 6810166), (17, 4807176), (22, 3714636), (24, 3405083), (33, 2476424), (34, 2403588), (44, 1857318), (51, 1602392), (66, 1238212), (68, 1201794), (88, 928659), (102, 801196), (131, 623832), (132, 619106), (136, 600897), (139, 587928), (187, 437016), (204, 400598), (262, 311916), (264, 309553), (278, 293964), (374, 218508), (393, 207944), (408, 200299), (417, 195976), (524, 155958), (556, 146982), (561, 145672), (748, 109254), (786, 103972), (834, 97988), (1048, 77979), (1112, 73491), (1122, 72836), (1441, 56712), (1496, 54627), (1529, 53448), (1572, 51986), (1668, 48994), (2227, 36696), (2244, 36418), (2363, 34584), (2882, 28356), (3058, 26724), (3144, 25993), (3336, 24497), (4323, 18904), (4454, 18348), (4488, 18209), (4587, 17816), (4726, 17292), (5764, 14178), (6116, 13362), (6681, 12232), (7089, 11528), (8646, 9452), (8908, 9174)]