18920940416

素因数分解:

$2^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{570733}}^1$

素因数の和:570791

約数の個数: 64

約数和(自身を含む): 44243299680

約数和(自身を除く): 25322359264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 259, 296, 448, 518, 592, 896, 1036, 1184, 2072, 2368, 4144, 4736, 8288, 16576, 33152, 570733, 1141466, 2282932, 3995131, 4565864, 7990262, 9131728, 15980524, 18263456, 21117121, 31961048, 36526912, 42234242, 63922096, 73053824, 84468484, 127844192, 147819847, 168936968, 255688384, 295639694, 337873936, 511376768, 591279388, 675747872, 1182558776, 1351495744, 2365117552, 2702991488, 4730235104, 9460470208, 18920940416]

約数ペア:

[(1, 18920940416), (2, 9460470208), (4, 4730235104), (7, 2702991488), (8, 2365117552), (14, 1351495744), (16, 1182558776), (28, 675747872), (32, 591279388), (37, 511376768), (56, 337873936), (64, 295639694), (74, 255688384), (112, 168936968), (128, 147819847), (148, 127844192), (224, 84468484), (259, 73053824), (296, 63922096), (448, 42234242), (518, 36526912), (592, 31961048), (896, 21117121), (1036, 18263456), (1184, 15980524), (2072, 9131728), (2368, 7990262), (4144, 4565864), (4736, 3995131), (8288, 2282932), (16576, 1141466), (33152, 570733)]