19804864

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:305

約数の個数: 56

約数和(自身を含む): 42245280

約数和(自身を除く): 22440416

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 109, 136, 167, 218, 272, 334, 436, 544, 668, 872, 1088, 1336, 1744, 1853, 2672, 2839, 3488, 3706, 5344, 5678, 6976, 7412, 10688, 11356, 14824, 18203, 22712, 29648, 36406, 45424, 59296, 72812, 90848, 118592, 145624, 181696, 291248, 309451, 582496, 618902, 1164992, 1237804, 2475608, 4951216, 9902432, 19804864]

約数ペア:

[(1, 19804864), (2, 9902432), (4, 4951216), (8, 2475608), (16, 1237804), (17, 1164992), (32, 618902), (34, 582496), (64, 309451), (68, 291248), (109, 181696), (136, 145624), (167, 118592), (218, 90848), (272, 72812), (334, 59296), (436, 45424), (544, 36406), (668, 29648), (872, 22712), (1088, 18203), (1336, 14824), (1744, 11356), (1853, 10688), (2672, 7412), (2839, 6976), (3488, 5678), (3706, 5344)]