1221940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 2594592

約数和(自身を除く): 1372652

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 571, 1070, 1142, 2140, 2284, 2855, 5710, 11420, 61097, 122194, 244388, 305485, 610970, 1221940]

約数ペア:

[(1, 1221940), (2, 610970), (4, 305485), (5, 244388), (10, 122194), (20, 61097), (107, 11420), (214, 5710), (428, 2855), (535, 2284), (571, 2140), (1070, 1142)]