781379312

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{647}}^1$

素因数の和:966

約数の個数: 80

約数和(自身を含む): 1781885952

約数和(自身を除く): 1000506640

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 263, 287, 328, 526, 574, 647, 656, 1052, 1148, 1294, 1841, 2104, 2296, 2588, 3682, 4208, 4529, 4592, 5176, 7364, 9058, 10352, 10783, 14728, 18116, 21566, 26527, 29456, 36232, 43132, 53054, 72464, 75481, 86264, 106108, 150962, 170161, 172528, 185689, 212216, 301924, 340322, 371378, 424432, 603848, 680644, 742756, 1191127, 1207696, 1361288, 1485512, 2382254, 2722576, 2971024, 4764508, 6976601, 9529016, 13953202, 19058032, 27906404, 48836207, 55812808, 97672414, 111625616, 195344828, 390689656, 781379312]

約数ペア:

[(1, 781379312), (2, 390689656), (4, 195344828), (7, 111625616), (8, 97672414), (14, 55812808), (16, 48836207), (28, 27906404), (41, 19058032), (56, 13953202), (82, 9529016), (112, 6976601), (164, 4764508), (263, 2971024), (287, 2722576), (328, 2382254), (526, 1485512), (574, 1361288), (647, 1207696), (656, 1191127), (1052, 742756), (1148, 680644), (1294, 603848), (1841, 424432), (2104, 371378), (2296, 340322), (2588, 301924), (3682, 212216), (4208, 185689), (4529, 172528), (4592, 170161), (5176, 150962), (7364, 106108), (9058, 86264), (10352, 75481), (10783, 72464), (14728, 53054), (18116, 43132), (21566, 36232), (26527, 29456)]