16420340

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1613}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 34571880

約数和(自身を除く): 18151540

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1613, 2036, 2545, 3226, 5090, 6452, 8065, 10180, 16130, 32260, 821017, 1642034, 3284068, 4105085, 8210170, 16420340]

約数ペア:

[(1, 16420340), (2, 8210170), (4, 4105085), (5, 3284068), (10, 1642034), (20, 821017), (509, 32260), (1018, 16130), (1613, 10180), (2036, 8065), (2545, 6452), (3226, 5090)]