20405792168

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{457}}^1\times {\mathrm{136133}}^1$

素因数の和:136637

約数の個数: 32

約数和(自身を含む): 39280104360

約数和(自身を除く): 18874312192

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 457, 914, 1828, 3656, 18737, 37474, 74948, 136133, 149896, 272266, 544532, 1089064, 5581453, 11162906, 22325812, 44651624, 62212781, 124425562, 248851124, 497702248, 2550724021, 5101448042, 10202896084, 20405792168]

約数ペア:

[(1, 20405792168), (2, 10202896084), (4, 5101448042), (8, 2550724021), (41, 497702248), (82, 248851124), (164, 124425562), (328, 62212781), (457, 44651624), (914, 22325812), (1828, 11162906), (3656, 5581453), (18737, 1089064), (37474, 544532), (74948, 272266), (136133, 149896)]