1285123112

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:803

約数の個数: 128

約数和(自身を含む): 3088968960

約数和(自身を除く): 1803845848

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 61, 86, 91, 104, 122, 172, 182, 244, 301, 344, 364, 427, 488, 559, 602, 673, 728, 793, 854, 1118, 1204, 1346, 1586, 1708, 2236, 2408, 2623, 2692, 3172, 3416, 3913, 4472, 4711, 5246, 5384, 5551, 6344, 7826, 8749, 9422, 10492, 11102, 15652, 17498, 18361, 18844, 20984, 22204, 28939, 31304, 34099, 34996, 36722, 37688, 41053, 44408, 57878, 61243, 68198, 69992, 73444, 82106, 115756, 122486, 136396, 146888, 164212, 202573, 231512, 238693, 244972, 272792, 287371, 328424, 376207, 405146, 477386, 489944, 533689, 574742, 752414, 810292, 954772, 1067378, 1149484, 1504828, 1620584, 1765279, 1909544, 2134756, 2298968, 2633449, 3009656, 3530558, 3735823, 4269512, 5266898, 7061116, 7471646, 10533796, 12356953, 14122232, 14943292, 21067592, 22948627, 24713906, 29886584, 45897254, 49427812, 91794508, 98855624, 160640389, 183589016, 321280778, 642561556, 1285123112]

約数ペア:

[(1, 1285123112), (2, 642561556), (4, 321280778), (7, 183589016), (8, 160640389), (13, 98855624), (14, 91794508), (26, 49427812), (28, 45897254), (43, 29886584), (52, 24713906), (56, 22948627), (61, 21067592), (86, 14943292), (91, 14122232), (104, 12356953), (122, 10533796), (172, 7471646), (182, 7061116), (244, 5266898), (301, 4269512), (344, 3735823), (364, 3530558), (427, 3009656), (488, 2633449), (559, 2298968), (602, 2134756), (673, 1909544), (728, 1765279), (793, 1620584), (854, 1504828), (1118, 1149484), (1204, 1067378), (1346, 954772), (1586, 810292), (1708, 752414), (2236, 574742), (2408, 533689), (2623, 489944), (2692, 477386), (3172, 405146), (3416, 376207), (3913, 328424), (4472, 287371), (4711, 272792), (5246, 244972), (5384, 238693), (5551, 231512), (6344, 202573), (7826, 164212), (8749, 146888), (9422, 136396), (10492, 122486), (11102, 115756), (15652, 82106), (17498, 73444), (18361, 69992), (18844, 68198), (20984, 61243), (22204, 57878), (28939, 44408), (31304, 41053), (34099, 37688), (34996, 36722)]