81995368

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 203212800

約数和(自身を除く): 121217432

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 52, 56, 59, 83, 91, 92, 104, 118, 161, 166, 182, 184, 236, 299, 322, 332, 364, 413, 472, 581, 598, 644, 664, 728, 767, 826, 1079, 1162, 1196, 1288, 1357, 1534, 1652, 1909, 2093, 2158, 2324, 2392, 2714, 3068, 3304, 3818, 4186, 4316, 4648, 4897, 5369, 5428, 6136, 7553, 7636, 8372, 8632, 9499, 9794, 10738, 10856, 13363, 15106, 15272, 16744, 17641, 18998, 19588, 21476, 24817, 26726, 30212, 34279, 35282, 37996, 39176, 42952, 49634, 53452, 60424, 63661, 68558, 70564, 75992, 99268, 106904, 112631, 123487, 127322, 137116, 141128, 173719, 198536, 225262, 246974, 254644, 274232, 347438, 445627, 450524, 493948, 509288, 694876, 788417, 891254, 901048, 987896, 1389752, 1464203, 1576834, 1782508, 2928406, 3153668, 3565016, 5856812, 6307336, 10249421, 11713624, 20498842, 40997684, 81995368]

約数ペア:

[(1, 81995368), (2, 40997684), (4, 20498842), (7, 11713624), (8, 10249421), (13, 6307336), (14, 5856812), (23, 3565016), (26, 3153668), (28, 2928406), (46, 1782508), (52, 1576834), (56, 1464203), (59, 1389752), (83, 987896), (91, 901048), (92, 891254), (104, 788417), (118, 694876), (161, 509288), (166, 493948), (182, 450524), (184, 445627), (236, 347438), (299, 274232), (322, 254644), (332, 246974), (364, 225262), (413, 198536), (472, 173719), (581, 141128), (598, 137116), (644, 127322), (664, 123487), (728, 112631), (767, 106904), (826, 99268), (1079, 75992), (1162, 70564), (1196, 68558), (1288, 63661), (1357, 60424), (1534, 53452), (1652, 49634), (1909, 42952), (2093, 39176), (2158, 37996), (2324, 35282), (2392, 34279), (2714, 30212), (3068, 26726), (3304, 24817), (3818, 21476), (4186, 19588), (4316, 18998), (4648, 17641), (4897, 16744), (5369, 15272), (5428, 15106), (6136, 13363), (7553, 10856), (7636, 10738), (8372, 9794), (8632, 9499)]