280340

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 598752

約数和(自身を除く): 318412

約数列:

[1, 2, 4, 5, 10, 20, 107, 131, 214, 262, 428, 524, 535, 655, 1070, 1310, 2140, 2620, 14017, 28034, 56068, 70085, 140170, 280340]

約数ペア:

[(1, 280340), (2, 140170), (4, 70085), (5, 56068), (10, 28034), (20, 14017), (107, 2620), (131, 2140), (214, 1310), (262, 1070), (428, 655), (524, 535)]