19530220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42457}}^1$

素因数の和:42489

約数の個数: 24

約数和(自身を含む): 42797664

約数和(自身を除く): 23267444

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42457, 84914, 169828, 212285, 424570, 849140, 976511, 1953022, 3906044, 4882555, 9765110, 19530220]

約数ペア:

[(1, 19530220), (2, 9765110), (4, 4882555), (5, 3906044), (10, 1953022), (20, 976511), (23, 849140), (46, 424570), (92, 212285), (115, 169828), (230, 84914), (460, 42457)]