664843984

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1272

約数の個数: 80

約数和(自身を含む): 1519648768

約数和(自身を除く): 854804784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 127, 172, 254, 301, 344, 508, 602, 688, 889, 1016, 1087, 1204, 1778, 2032, 2174, 2408, 3556, 4348, 4816, 5461, 7112, 7609, 8696, 10922, 14224, 15218, 17392, 21844, 30436, 38227, 43688, 46741, 60872, 76454, 87376, 93482, 121744, 138049, 152908, 186964, 276098, 305816, 327187, 373928, 552196, 611632, 654374, 747856, 966343, 1104392, 1308748, 1932686, 2208784, 2617496, 3865372, 5234992, 5936107, 7730744, 11872214, 15461488, 23744428, 41552749, 47488856, 83105498, 94977712, 166210996, 332421992, 664843984]

約数ペア:

[(1, 664843984), (2, 332421992), (4, 166210996), (7, 94977712), (8, 83105498), (14, 47488856), (16, 41552749), (28, 23744428), (43, 15461488), (56, 11872214), (86, 7730744), (112, 5936107), (127, 5234992), (172, 3865372), (254, 2617496), (301, 2208784), (344, 1932686), (508, 1308748), (602, 1104392), (688, 966343), (889, 747856), (1016, 654374), (1087, 611632), (1204, 552196), (1778, 373928), (2032, 327187), (2174, 305816), (2408, 276098), (3556, 186964), (4348, 152908), (4816, 138049), (5461, 121744), (7112, 93482), (7609, 87376), (8696, 76454), (10922, 60872), (14224, 46741), (15218, 43688), (17392, 38227), (21844, 30436)]