20477890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47623}}^1$

素因数の和:47673

約数の個数: 16

約数和(自身を含む): 37718208

約数和(自身を除く): 17240318

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47623, 95246, 238115, 476230, 2047789, 4095578, 10238945, 20477890]

約数ペア:

[(1, 20477890), (2, 10238945), (5, 4095578), (10, 2047789), (43, 476230), (86, 238115), (215, 95246), (430, 47623)]