91990420

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{3089}}^1$

素因数の和:4587

約数の個数: 24

約数和(自身を含む): 193372200

約数和(自身を除く): 101381780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 3089, 5956, 6178, 7445, 12356, 14890, 15445, 29780, 30890, 61780, 4599521, 9199042, 18398084, 22997605, 45995210, 91990420]

約数ペア:

[(1, 91990420), (2, 45995210), (4, 22997605), (5, 18398084), (10, 9199042), (20, 4599521), (1489, 61780), (2978, 30890), (3089, 29780), (5956, 15445), (6178, 14890), (7445, 12356)]