209173328

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 120

約数和(自身を含む): 515199168

約数和(自身を除く): 306025840

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 169, 172, 182, 208, 257, 301, 338, 344, 364, 514, 559, 602, 676, 688, 728, 1028, 1118, 1183, 1204, 1352, 1456, 1799, 2056, 2236, 2366, 2408, 2704, 3341, 3598, 3913, 4112, 4472, 4732, 4816, 6682, 7196, 7267, 7826, 8944, 9464, 11051, 13364, 14392, 14534, 15652, 18928, 22102, 23387, 26728, 28784, 29068, 31304, 43433, 44204, 46774, 50869, 53456, 58136, 62608, 77357, 86866, 88408, 93548, 101738, 116272, 143663, 154714, 173732, 176816, 187096, 203476, 287326, 304031, 309428, 347464, 374192, 406952, 574652, 608062, 618856, 694928, 813904, 1005641, 1149304, 1216124, 1237712, 1867619, 2011282, 2298608, 2432248, 3735238, 4022564, 4864496, 7470476, 8045128, 13073333, 14940952, 16090256, 26146666, 29881904, 52293332, 104586664, 209173328]

約数ペア:

[(1, 209173328), (2, 104586664), (4, 52293332), (7, 29881904), (8, 26146666), (13, 16090256), (14, 14940952), (16, 13073333), (26, 8045128), (28, 7470476), (43, 4864496), (52, 4022564), (56, 3735238), (86, 2432248), (91, 2298608), (104, 2011282), (112, 1867619), (169, 1237712), (172, 1216124), (182, 1149304), (208, 1005641), (257, 813904), (301, 694928), (338, 618856), (344, 608062), (364, 574652), (514, 406952), (559, 374192), (602, 347464), (676, 309428), (688, 304031), (728, 287326), (1028, 203476), (1118, 187096), (1183, 176816), (1204, 173732), (1352, 154714), (1456, 143663), (1799, 116272), (2056, 101738), (2236, 93548), (2366, 88408), (2408, 86866), (2704, 77357), (3341, 62608), (3598, 58136), (3913, 53456), (4112, 50869), (4472, 46774), (4732, 44204), (4816, 43433), (6682, 31304), (7196, 29068), (7267, 28784), (7826, 26728), (8944, 23387), (9464, 22102), (11051, 18928), (13364, 15652), (14392, 14534)]