20123640020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{217271}}^1$

素因数の和:217712

約数の個数: 48

約数和(自身を含む): 46211147136

約数和(自身を除く): 26087507116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 421, 842, 1684, 2105, 4210, 4631, 8420, 9262, 18524, 23155, 46310, 92620, 217271, 434542, 869084, 1086355, 2172710, 2389981, 4345420, 4779962, 9559924, 11949905, 23899810, 47799620, 91471091, 182942182, 365884364, 457355455, 914710910, 1006182001, 1829421820, 2012364002, 4024728004, 5030910005, 10061820010, 20123640020]

約数ペア:

[(1, 20123640020), (2, 10061820010), (4, 5030910005), (5, 4024728004), (10, 2012364002), (11, 1829421820), (20, 1006182001), (22, 914710910), (44, 457355455), (55, 365884364), (110, 182942182), (220, 91471091), (421, 47799620), (842, 23899810), (1684, 11949905), (2105, 9559924), (4210, 4779962), (4631, 4345420), (8420, 2389981), (9262, 2172710), (18524, 1086355), (23155, 869084), (46310, 434542), (92620, 217271)]