256558288

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1061}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 606818304

約数和(自身を除く): 350260016

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 127, 136, 238, 254, 272, 476, 508, 889, 952, 1016, 1061, 1778, 1904, 2032, 2122, 2159, 3556, 4244, 4318, 7112, 7427, 8488, 8636, 14224, 14854, 15113, 16976, 17272, 18037, 29708, 30226, 34544, 36074, 59416, 60452, 72148, 118832, 120904, 126259, 134747, 144296, 241808, 252518, 269494, 288592, 505036, 538988, 943229, 1010072, 1077976, 1886458, 2020144, 2155952, 2290699, 3772916, 4581398, 7545832, 9162796, 15091664, 16034893, 18325592, 32069786, 36651184, 64139572, 128279144, 256558288]

約数ペア:

[(1, 256558288), (2, 128279144), (4, 64139572), (7, 36651184), (8, 32069786), (14, 18325592), (16, 16034893), (17, 15091664), (28, 9162796), (34, 7545832), (56, 4581398), (68, 3772916), (112, 2290699), (119, 2155952), (127, 2020144), (136, 1886458), (238, 1077976), (254, 1010072), (272, 943229), (476, 538988), (508, 505036), (889, 288592), (952, 269494), (1016, 252518), (1061, 241808), (1778, 144296), (1904, 134747), (2032, 126259), (2122, 120904), (2159, 118832), (3556, 72148), (4244, 60452), (4318, 59416), (7112, 36074), (7427, 34544), (8488, 30226), (8636, 29708), (14224, 18037), (14854, 17272), (15113, 16976)]