257791716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78691}}^1$

素因数の和:78721

約数の個数: 72

約数和(自身を含む): 802028864

約数和(自身を除く): 544237148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 78691, 157382, 236073, 314764, 472146, 550837, 708219, 944292, 1022983, 1101674, 1416438, 1652511, 2045966, 2203348, 2832876, 3068949, 3305022, 4091932, 4957533, 6137898, 6610044, 7160881, 9206847, 9915066, 12275796, 14321762, 18413694, 19830132, 21482643, 28643524, 36827388, 42965286, 64447929, 85930572, 128895858, 257791716]

約数ペア:

[(1, 257791716), (2, 128895858), (3, 85930572), (4, 64447929), (6, 42965286), (7, 36827388), (9, 28643524), (12, 21482643), (13, 19830132), (14, 18413694), (18, 14321762), (21, 12275796), (26, 9915066), (28, 9206847), (36, 7160881), (39, 6610044), (42, 6137898), (52, 4957533), (63, 4091932), (78, 3305022), (84, 3068949), (91, 2832876), (117, 2203348), (126, 2045966), (156, 1652511), (182, 1416438), (234, 1101674), (252, 1022983), (273, 944292), (364, 708219), (468, 550837), (546, 472146), (819, 314764), (1092, 236073), (1638, 157382), (3276, 78691)]