890809960

素因数分解:

$2^3\times 5^1\times {\mathrm{22270249}}^1$

素因数の和:22270260

約数の個数: 16

約数和(自身を含む): 2004322500

約数和(自身を除く): 1113512540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22270249, 44540498, 89080996, 111351245, 178161992, 222702490, 445404980, 890809960]

約数ペア:

[(1, 890809960), (2, 445404980), (4, 222702490), (5, 178161992), (8, 111351245), (10, 89080996), (20, 44540498), (40, 22270249)]