18754976

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 39362400

約数和(自身を除く): 20607424

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 109, 152, 218, 283, 304, 436, 566, 608, 872, 1132, 1744, 2071, 2264, 3488, 4142, 4528, 5377, 8284, 9056, 10754, 16568, 21508, 30847, 33136, 43016, 61694, 66272, 86032, 123388, 172064, 246776, 493552, 586093, 987104, 1172186, 2344372, 4688744, 9377488, 18754976]

約数ペア:

[(1, 18754976), (2, 9377488), (4, 4688744), (8, 2344372), (16, 1172186), (19, 987104), (32, 586093), (38, 493552), (76, 246776), (109, 172064), (152, 123388), (218, 86032), (283, 66272), (304, 61694), (436, 43016), (566, 33136), (608, 30847), (872, 21508), (1132, 16568), (1744, 10754), (2071, 9056), (2264, 8284), (3488, 5377), (4142, 4528)]