20850020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9743}}^1$

素因数の和:9859

約数の個数: 24

約数和(自身を含む): 44198784

約数和(自身を除く): 23348764

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9743, 19486, 38972, 48715, 97430, 194860, 1042501, 2085002, 4170004, 5212505, 10425010, 20850020]

約数ペア:

[(1, 20850020), (2, 10425010), (4, 5212505), (5, 4170004), (10, 2085002), (20, 1042501), (107, 194860), (214, 97430), (428, 48715), (535, 38972), (1070, 19486), (2140, 9743)]