17817940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127271}}^1$

素因数の和:127287

約数の個数: 24

約数和(自身を含む): 42763392

約数和(自身を除く): 24945452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 127271, 254542, 509084, 636355, 890897, 1272710, 1781794, 2545420, 3563588, 4454485, 8908970, 17817940]

約数ペア:

[(1, 17817940), (2, 8908970), (4, 4454485), (5, 3563588), (7, 2545420), (10, 1781794), (14, 1272710), (20, 890897), (28, 636355), (35, 509084), (70, 254542), (140, 127271)]