81301836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 251444480

約数和(自身を除く): 170142644

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 28, 33, 38, 42, 44, 57, 66, 76, 77, 84, 114, 121, 132, 133, 154, 209, 228, 231, 242, 266, 308, 363, 399, 418, 421, 462, 484, 532, 627, 726, 798, 836, 842, 847, 924, 1254, 1263, 1452, 1463, 1596, 1684, 1694, 2299, 2508, 2526, 2541, 2926, 2947, 3388, 4389, 4598, 4631, 5052, 5082, 5852, 5894, 6897, 7999, 8778, 8841, 9196, 9262, 10164, 11788, 13794, 13893, 15998, 16093, 17556, 17682, 18524, 23997, 27588, 27786, 31996, 32186, 32417, 35364, 47994, 48279, 50941, 55572, 55993, 64372, 64834, 87989, 95988, 96558, 97251, 101882, 111986, 129668, 152823, 167979, 175978, 193116, 194502, 203764, 223972, 263967, 305646, 335958, 351956, 356587, 389004, 527934, 611292, 615923, 671916, 713174, 967879, 1055868, 1069761, 1231846, 1426348, 1847769, 1935758, 2139522, 2463692, 2903637, 3695538, 3871516, 4279044, 5807274, 6775153, 7391076, 11614548, 13550306, 20325459, 27100612, 40650918, 81301836]

約数ペア:

[(1, 81301836), (2, 40650918), (3, 27100612), (4, 20325459), (6, 13550306), (7, 11614548), (11, 7391076), (12, 6775153), (14, 5807274), (19, 4279044), (21, 3871516), (22, 3695538), (28, 2903637), (33, 2463692), (38, 2139522), (42, 1935758), (44, 1847769), (57, 1426348), (66, 1231846), (76, 1069761), (77, 1055868), (84, 967879), (114, 713174), (121, 671916), (132, 615923), (133, 611292), (154, 527934), (209, 389004), (228, 356587), (231, 351956), (242, 335958), (266, 305646), (308, 263967), (363, 223972), (399, 203764), (418, 194502), (421, 193116), (462, 175978), (484, 167979), (532, 152823), (627, 129668), (726, 111986), (798, 101882), (836, 97251), (842, 96558), (847, 95988), (924, 87989), (1254, 64834), (1263, 64372), (1452, 55993), (1463, 55572), (1596, 50941), (1684, 48279), (1694, 47994), (2299, 35364), (2508, 32417), (2526, 32186), (2541, 31996), (2926, 27786), (2947, 27588), (3388, 23997), (4389, 18524), (4598, 17682), (4631, 17556), (5052, 16093), (5082, 15998), (5852, 13893), (5894, 13794), (6897, 11788), (7999, 10164), (8778, 9262), (8841, 9196)]