20189890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{288427}}^1$

素因数の和:288441

約数の個数: 16

約数和(自身を含む): 41533632

約数和(自身を除く): 21343742

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 288427, 576854, 1442135, 2018989, 2884270, 4037978, 10094945, 20189890]

約数ペア:

[(1, 20189890), (2, 10094945), (5, 4037978), (7, 2884270), (10, 2018989), (14, 1442135), (35, 576854), (70, 288427)]