78341788

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 170293200

約数和(自身を除く): 91951412

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 109, 133, 193, 196, 218, 266, 386, 436, 532, 763, 772, 931, 1351, 1526, 1862, 2071, 2702, 3052, 3667, 3724, 4142, 5341, 5404, 7334, 8284, 9457, 10682, 14497, 14668, 18914, 21037, 21364, 25669, 28994, 37828, 42074, 51338, 57988, 84148, 101479, 102676, 147259, 179683, 202958, 294518, 359366, 399703, 405916, 589036, 718732, 799406, 1030813, 1598812, 2061626, 2797921, 4123252, 5595842, 11191684, 19585447, 39170894, 78341788]

約数ペア:

[(1, 78341788), (2, 39170894), (4, 19585447), (7, 11191684), (14, 5595842), (19, 4123252), (28, 2797921), (38, 2061626), (49, 1598812), (76, 1030813), (98, 799406), (109, 718732), (133, 589036), (193, 405916), (196, 399703), (218, 359366), (266, 294518), (386, 202958), (436, 179683), (532, 147259), (763, 102676), (772, 101479), (931, 84148), (1351, 57988), (1526, 51338), (1862, 42074), (2071, 37828), (2702, 28994), (3052, 25669), (3667, 21364), (3724, 21037), (4142, 18914), (5341, 14668), (5404, 14497), (7334, 10682), (8284, 9457)]