18981580

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4969}}^1$

素因数の和:5169

約数の個数: 24

約数和(自身を含む): 40078080

約数和(自身を除く): 21096500

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 4969, 9938, 19876, 24845, 49690, 99380, 949079, 1898158, 3796316, 4745395, 9490790, 18981580]

約数ペア:

[(1, 18981580), (2, 9490790), (4, 4745395), (5, 3796316), (10, 1898158), (20, 949079), (191, 99380), (382, 49690), (764, 24845), (955, 19876), (1910, 9938), (3820, 4969)]