19992810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{666427}}^1$

素因数の和:666437

約数の個数: 16

約数和(自身を含む): 47982816

約数和(自身を除く): 27990006

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 666427, 1332854, 1999281, 3332135, 3998562, 6664270, 9996405, 19992810]

約数ペア:

[(1, 19992810), (2, 9996405), (3, 6664270), (5, 3998562), (6, 3332135), (10, 1999281), (15, 1332854), (30, 666427)]