256737726

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 651006720

約数和(自身を除く): 394268994

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 107, 126, 137, 139, 214, 274, 278, 321, 411, 417, 642, 749, 822, 834, 959, 963, 973, 1233, 1251, 1498, 1918, 1926, 1946, 2247, 2466, 2502, 2877, 2919, 4494, 5754, 5838, 6741, 8631, 8757, 13482, 14659, 14873, 17262, 17514, 19043, 29318, 29746, 38086, 43977, 44619, 57129, 87954, 89238, 102613, 104111, 114258, 131931, 133301, 133857, 171387, 205226, 208222, 263862, 266602, 267714, 307839, 312333, 342774, 399903, 615678, 624666, 799806, 923517, 936999, 1199709, 1847034, 1873998, 2037601, 2399418, 4075202, 6112803, 12225606, 14263207, 18338409, 28526414, 36676818, 42789621, 85579242, 128368863, 256737726]

約数ペア:

[(1, 256737726), (2, 128368863), (3, 85579242), (6, 42789621), (7, 36676818), (9, 28526414), (14, 18338409), (18, 14263207), (21, 12225606), (42, 6112803), (63, 4075202), (107, 2399418), (126, 2037601), (137, 1873998), (139, 1847034), (214, 1199709), (274, 936999), (278, 923517), (321, 799806), (411, 624666), (417, 615678), (642, 399903), (749, 342774), (822, 312333), (834, 307839), (959, 267714), (963, 266602), (973, 263862), (1233, 208222), (1251, 205226), (1498, 171387), (1918, 133857), (1926, 133301), (1946, 131931), (2247, 114258), (2466, 104111), (2502, 102613), (2877, 89238), (2919, 87954), (4494, 57129), (5754, 44619), (5838, 43977), (6741, 38086), (8631, 29746), (8757, 29318), (13482, 19043), (14659, 17514), (14873, 17262)]