19999470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{666649}}^1$

素因数の和:666659

約数の個数: 16

約数和(自身を含む): 47998800

約数和(自身を除く): 27999330

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 666649, 1333298, 1999947, 3333245, 3999894, 6666490, 9999735, 19999470]

約数ペア:

[(1, 19999470), (2, 9999735), (3, 6666490), (5, 3999894), (6, 3333245), (10, 1999947), (15, 1333298), (30, 666649)]