20341984

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:587

約数の個数: 48

約数和(自身を含む): 43627248

約数和(自身を除く): 23285264

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 107, 208, 214, 416, 428, 457, 856, 914, 1391, 1712, 1828, 2782, 3424, 3656, 5564, 5941, 7312, 11128, 11882, 14624, 22256, 23764, 44512, 47528, 48899, 95056, 97798, 190112, 195596, 391192, 635687, 782384, 1271374, 1564768, 2542748, 5085496, 10170992, 20341984]

約数ペア:

[(1, 20341984), (2, 10170992), (4, 5085496), (8, 2542748), (13, 1564768), (16, 1271374), (26, 782384), (32, 635687), (52, 391192), (104, 195596), (107, 190112), (208, 97798), (214, 95056), (416, 48899), (428, 47528), (457, 44512), (856, 23764), (914, 22256), (1391, 14624), (1712, 11882), (1828, 11128), (2782, 7312), (3424, 5941), (3656, 5564)]