18781210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38329}}^1$

素因数の和:38350

約数の個数: 24

約数和(自身を含む): 39326580

約数和(自身を除く): 20545370

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38329, 76658, 191645, 268303, 383290, 536606, 1341515, 1878121, 2683030, 3756242, 9390605, 18781210]

約数ペア:

[(1, 18781210), (2, 9390605), (5, 3756242), (7, 2683030), (10, 1878121), (14, 1341515), (35, 536606), (49, 383290), (70, 268303), (98, 191645), (245, 76658), (490, 38329)]