4163620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{509}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 8782200

約数和(自身を除く): 4618580

約数列:

[1, 2, 4, 5, 10, 20, 409, 509, 818, 1018, 1636, 2036, 2045, 2545, 4090, 5090, 8180, 10180, 208181, 416362, 832724, 1040905, 2081810, 4163620]

約数ペア:

[(1, 4163620), (2, 2081810), (4, 1040905), (5, 832724), (10, 416362), (20, 208181), (409, 10180), (509, 8180), (818, 5090), (1018, 4090), (1636, 2545), (2036, 2045)]