990019150

素因数分解:

$2^1\times 5^2\times {\mathrm{19800383}}^1$

素因数の和:19800395

約数の個数: 12

約数和(自身を含む): 1841435712

約数和(自身を除く): 851416562

約数列:

[1, 2, 5, 10, 25, 50, 19800383, 39600766, 99001915, 198003830, 495009575, 990019150]

約数ペア:

[(1, 990019150), (2, 495009575), (5, 198003830), (10, 99001915), (25, 39600766), (50, 19800383)]