212171288

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 506373120

約数和(自身を除く): 294201832

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 71, 73, 86, 119, 136, 142, 146, 172, 238, 284, 292, 301, 344, 476, 497, 511, 568, 584, 602, 731, 952, 994, 1022, 1204, 1207, 1241, 1462, 1988, 2044, 2408, 2414, 2482, 2924, 3053, 3139, 3976, 4088, 4828, 4964, 5117, 5183, 5848, 6106, 6278, 8449, 8687, 9656, 9928, 10234, 10366, 12212, 12556, 16898, 17374, 20468, 20732, 21371, 21973, 24424, 25112, 33796, 34748, 36281, 40936, 41464, 42742, 43946, 51901, 53363, 67592, 69496, 72562, 85484, 87892, 88111, 103802, 106726, 145124, 170968, 175784, 176222, 207604, 213452, 222869, 290248, 352444, 363307, 373541, 415208, 426904, 445738, 616777, 704888, 726614, 747082, 891476, 1233554, 1453228, 1494164, 1560083, 1782952, 2467108, 2906456, 2988328, 3120166, 3788773, 4934216, 6240332, 7577546, 12480664, 15155092, 26521411, 30310184, 53042822, 106085644, 212171288]

約数ペア:

[(1, 212171288), (2, 106085644), (4, 53042822), (7, 30310184), (8, 26521411), (14, 15155092), (17, 12480664), (28, 7577546), (34, 6240332), (43, 4934216), (56, 3788773), (68, 3120166), (71, 2988328), (73, 2906456), (86, 2467108), (119, 1782952), (136, 1560083), (142, 1494164), (146, 1453228), (172, 1233554), (238, 891476), (284, 747082), (292, 726614), (301, 704888), (344, 616777), (476, 445738), (497, 426904), (511, 415208), (568, 373541), (584, 363307), (602, 352444), (731, 290248), (952, 222869), (994, 213452), (1022, 207604), (1204, 176222), (1207, 175784), (1241, 170968), (1462, 145124), (1988, 106726), (2044, 103802), (2408, 88111), (2414, 87892), (2482, 85484), (2924, 72562), (3053, 69496), (3139, 67592), (3976, 53363), (4088, 51901), (4828, 43946), (4964, 42742), (5117, 41464), (5183, 40936), (5848, 36281), (6106, 34748), (6278, 33796), (8449, 25112), (8687, 24424), (9656, 21973), (9928, 21371), (10234, 20732), (10366, 20468), (12212, 17374), (12556, 16898)]