205678278

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{769}}^1$

素因数の和:923

約数の個数: 80

約数和(自身を含む): 500881920

約数和(自身を除く): 295203642

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 127, 162, 234, 254, 351, 381, 702, 762, 769, 1053, 1143, 1538, 1651, 2106, 2286, 2307, 3302, 3429, 4614, 4953, 6858, 6921, 9906, 9997, 10287, 13842, 14859, 19994, 20574, 20763, 29718, 29991, 41526, 44577, 59982, 62289, 89154, 89973, 97663, 124578, 133731, 179946, 195326, 267462, 269919, 292989, 539838, 585978, 809757, 878967, 1269619, 1619514, 1757934, 2539238, 2636901, 3808857, 5273802, 7617714, 7910703, 11426571, 15821406, 22853142, 34279713, 68559426, 102839139, 205678278]

約数ペア:

[(1, 205678278), (2, 102839139), (3, 68559426), (6, 34279713), (9, 22853142), (13, 15821406), (18, 11426571), (26, 7910703), (27, 7617714), (39, 5273802), (54, 3808857), (78, 2636901), (81, 2539238), (117, 1757934), (127, 1619514), (162, 1269619), (234, 878967), (254, 809757), (351, 585978), (381, 539838), (702, 292989), (762, 269919), (769, 267462), (1053, 195326), (1143, 179946), (1538, 133731), (1651, 124578), (2106, 97663), (2286, 89973), (2307, 89154), (3302, 62289), (3429, 59982), (4614, 44577), (4953, 41526), (6858, 29991), (6921, 29718), (9906, 20763), (9997, 20574), (10287, 19994), (13842, 14859)]