19623820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2399}}^1$

素因数の和:2817

約数の個数: 24

約数和(自身を含む): 41328000

約数和(自身を除く): 21704180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 2399, 4090, 4798, 8180, 9596, 11995, 23990, 47980, 981191, 1962382, 3924764, 4905955, 9811910, 19623820]

約数ペア:

[(1, 19623820), (2, 9811910), (4, 4905955), (5, 3924764), (10, 1962382), (20, 981191), (409, 47980), (818, 23990), (1636, 11995), (2045, 9596), (2399, 8180), (4090, 4798)]