80021788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 198051840

約数和(自身を除く): 118030052

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 29, 31, 34, 44, 58, 62, 68, 77, 116, 119, 124, 154, 187, 203, 217, 238, 289, 308, 319, 341, 374, 406, 434, 476, 493, 527, 578, 638, 682, 748, 812, 868, 899, 986, 1054, 1156, 1276, 1309, 1364, 1798, 1972, 2023, 2108, 2233, 2387, 2618, 3179, 3451, 3596, 3689, 4046, 4466, 4774, 5236, 5423, 5797, 6293, 6358, 6902, 7378, 8092, 8381, 8932, 8959, 9548, 9889, 10846, 11594, 12586, 12716, 13804, 14756, 15283, 16762, 17918, 19778, 21692, 22253, 23188, 25172, 30566, 33524, 35836, 37961, 39556, 40579, 44506, 58667, 61132, 62713, 69223, 75922, 81158, 89012, 92191, 98549, 106981, 117334, 125426, 138446, 151844, 162316, 168113, 184382, 197098, 213962, 234668, 250852, 259811, 276892, 336226, 368764, 394196, 427924, 519622, 645337, 672452, 689843, 1039244, 1176791, 1290674, 1379686, 1818677, 2353582, 2581348, 2759372, 2857921, 3637354, 4707164, 5715842, 7274708, 11431684, 20005447, 40010894, 80021788]

約数ペア:

[(1, 80021788), (2, 40010894), (4, 20005447), (7, 11431684), (11, 7274708), (14, 5715842), (17, 4707164), (22, 3637354), (28, 2857921), (29, 2759372), (31, 2581348), (34, 2353582), (44, 1818677), (58, 1379686), (62, 1290674), (68, 1176791), (77, 1039244), (116, 689843), (119, 672452), (124, 645337), (154, 519622), (187, 427924), (203, 394196), (217, 368764), (238, 336226), (289, 276892), (308, 259811), (319, 250852), (341, 234668), (374, 213962), (406, 197098), (434, 184382), (476, 168113), (493, 162316), (527, 151844), (578, 138446), (638, 125426), (682, 117334), (748, 106981), (812, 98549), (868, 92191), (899, 89012), (986, 81158), (1054, 75922), (1156, 69223), (1276, 62713), (1309, 61132), (1364, 58667), (1798, 44506), (1972, 40579), (2023, 39556), (2108, 37961), (2233, 35836), (2387, 33524), (2618, 30566), (3179, 25172), (3451, 23188), (3596, 22253), (3689, 21692), (4046, 19778), (4466, 17918), (4774, 16762), (5236, 15283), (5423, 14756), (5797, 13804), (6293, 12716), (6358, 12586), (6902, 11594), (7378, 10846), (8092, 9889), (8381, 9548), (8932, 8959)]