1621142020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{757543}}^1$

素因数の和:757659

約数の個数: 24

約数和(自身を含む): 3436219584

約数和(自身を除く): 1815077564

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 757543, 1515086, 3030172, 3787715, 7575430, 15150860, 81057101, 162114202, 324228404, 405285505, 810571010, 1621142020]

約数ペア:

[(1, 1621142020), (2, 810571010), (4, 405285505), (5, 324228404), (10, 162114202), (20, 81057101), (107, 15150860), (214, 7575430), (428, 3787715), (535, 3030172), (1070, 1515086), (2140, 757543)]