81512676

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 250380480

約数和(自身を除く): 168867804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 73, 84, 98, 108, 126, 146, 147, 189, 196, 211, 219, 252, 292, 294, 378, 422, 438, 441, 511, 588, 633, 657, 756, 844, 876, 882, 1022, 1266, 1314, 1323, 1477, 1533, 1764, 1899, 1971, 2044, 2532, 2628, 2646, 2954, 3066, 3577, 3798, 3942, 4431, 4599, 5292, 5697, 5908, 6132, 7154, 7596, 7884, 8862, 9198, 10339, 10731, 11394, 13293, 13797, 14308, 15403, 17724, 18396, 20678, 21462, 22788, 26586, 27594, 30806, 31017, 32193, 39879, 41356, 42924, 46209, 53172, 55188, 61612, 62034, 64386, 79758, 92418, 93051, 96579, 107821, 124068, 128772, 138627, 159516, 184836, 186102, 193158, 215642, 277254, 279153, 323463, 372204, 386316, 415881, 431284, 554508, 558306, 646926, 754747, 831762, 970389, 1116612, 1293852, 1509494, 1663524, 1940778, 2264241, 2911167, 3018988, 3881556, 4528482, 5822334, 6792723, 9056964, 11644668, 13585446, 20378169, 27170892, 40756338, 81512676]

約数ペア:

[(1, 81512676), (2, 40756338), (3, 27170892), (4, 20378169), (6, 13585446), (7, 11644668), (9, 9056964), (12, 6792723), (14, 5822334), (18, 4528482), (21, 3881556), (27, 3018988), (28, 2911167), (36, 2264241), (42, 1940778), (49, 1663524), (54, 1509494), (63, 1293852), (73, 1116612), (84, 970389), (98, 831762), (108, 754747), (126, 646926), (146, 558306), (147, 554508), (189, 431284), (196, 415881), (211, 386316), (219, 372204), (252, 323463), (292, 279153), (294, 277254), (378, 215642), (422, 193158), (438, 186102), (441, 184836), (511, 159516), (588, 138627), (633, 128772), (657, 124068), (756, 107821), (844, 96579), (876, 93051), (882, 92418), (1022, 79758), (1266, 64386), (1314, 62034), (1323, 61612), (1477, 55188), (1533, 53172), (1764, 46209), (1899, 42924), (1971, 41356), (2044, 39879), (2532, 32193), (2628, 31017), (2646, 30806), (2954, 27594), (3066, 26586), (3577, 22788), (3798, 21462), (3942, 20678), (4431, 18396), (4599, 17724), (5292, 15403), (5697, 14308), (5908, 13797), (6132, 13293), (7154, 11394), (7596, 10731), (7884, 10339), (8862, 9198)]