40802780

素因数分解:

$2^2\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{1499}}^1$

素因数の和:2869

約数の個数: 24

約数和(自身を含む): 85806000

約数和(自身を除く): 45003220

約数列:

[1, 2, 4, 5, 10, 20, 1361, 1499, 2722, 2998, 5444, 5996, 6805, 7495, 13610, 14990, 27220, 29980, 2040139, 4080278, 8160556, 10200695, 20401390, 40802780]

約数ペア:

[(1, 40802780), (2, 20401390), (4, 10200695), (5, 8160556), (10, 4080278), (20, 2040139), (1361, 29980), (1499, 27220), (2722, 14990), (2998, 13610), (5444, 7495), (5996, 6805)]