78817788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1217}}^1$

素因数の和:1491

約数の個数: 72

約数和(自身を含む): 228769632

約数和(自身を除く): 149951844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 514, 771, 1028, 1217, 1542, 1799, 2313, 2434, 3084, 3598, 3651, 4626, 4868, 5397, 7196, 7302, 8519, 9252, 10794, 10953, 14604, 16191, 17038, 21588, 21906, 25557, 32382, 34076, 43812, 51114, 64764, 76671, 102228, 153342, 306684, 312769, 625538, 938307, 1251076, 1876614, 2189383, 2814921, 3753228, 4378766, 5629842, 6568149, 8757532, 11259684, 13136298, 19704447, 26272596, 39408894, 78817788]

約数ペア:

[(1, 78817788), (2, 39408894), (3, 26272596), (4, 19704447), (6, 13136298), (7, 11259684), (9, 8757532), (12, 6568149), (14, 5629842), (18, 4378766), (21, 3753228), (28, 2814921), (36, 2189383), (42, 1876614), (63, 1251076), (84, 938307), (126, 625538), (252, 312769), (257, 306684), (514, 153342), (771, 102228), (1028, 76671), (1217, 64764), (1542, 51114), (1799, 43812), (2313, 34076), (2434, 32382), (3084, 25557), (3598, 21906), (3651, 21588), (4626, 17038), (4868, 16191), (5397, 14604), (7196, 10953), (7302, 10794), (8519, 9252)]