20195887990

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4820021}}^1$

素因数の和:4820447

約数の個数: 16

約数和(自身を含む): 36439366320

約数和(自身を除く): 16243478330

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 4820021, 9640042, 24100105, 48200210, 2019588799, 4039177598, 10097943995, 20195887990]

約数ペア:

[(1, 20195887990), (2, 10097943995), (5, 4039177598), (10, 2019588799), (419, 48200210), (838, 24100105), (2095, 9640042), (4190, 4820021)]