22019960

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2609}}^1$

素因数の和:2831

約数の個数: 32

約数和(自身を含む): 49798800

約数和(自身を除く): 27778840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2609, 4220, 5218, 8440, 10436, 13045, 20872, 26090, 52180, 104360, 550499, 1100998, 2201996, 2752495, 4403992, 5504990, 11009980, 22019960]

約数ペア:

[(1, 22019960), (2, 11009980), (4, 5504990), (5, 4403992), (8, 2752495), (10, 2201996), (20, 1100998), (40, 550499), (211, 104360), (422, 52180), (844, 26090), (1055, 20872), (1688, 13045), (2110, 10436), (2609, 8440), (4220, 5218)]