19782260

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3677}}^1$

素因数の和:3955

約数の個数: 24

約数和(自身を含む): 41708520

約数和(自身を除く): 21926260

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3677, 5380, 7354, 14708, 18385, 36770, 73540, 989113, 1978226, 3956452, 4945565, 9891130, 19782260]

約数ペア:

[(1, 19782260), (2, 9891130), (4, 4945565), (5, 3956452), (10, 1978226), (20, 989113), (269, 73540), (538, 36770), (1076, 18385), (1345, 14708), (2690, 7354), (3677, 5380)]