20888927984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{2713}}^1\times {\mathrm{5407}}^1$

素因数の和:8217

約数の個数: 40

約数和(自身を含む): 40949700480

約数和(自身を除く): 20060772496

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 2713, 5407, 5426, 10814, 10852, 21628, 21704, 43256, 43408, 86512, 241457, 481223, 482914, 962446, 965828, 1924892, 1931656, 3849784, 3863312, 7699568, 14669191, 29338382, 58676764, 117353528, 234707056, 1305557999, 2611115998, 5222231996, 10444463992, 20888927984]

約数ペア:

[(1, 20888927984), (2, 10444463992), (4, 5222231996), (8, 2611115998), (16, 1305557999), (89, 234707056), (178, 117353528), (356, 58676764), (712, 29338382), (1424, 14669191), (2713, 7699568), (5407, 3863312), (5426, 3849784), (10814, 1931656), (10852, 1924892), (21628, 965828), (21704, 962446), (43256, 482914), (43408, 481223), (86512, 241457)]