874625020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{278543}}^1$

素因数の和:278709

約数の個数: 24

約数和(自身を含む): 1848417984

約数和(自身を除く): 973792964

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 278543, 557086, 1114172, 1392715, 2785430, 5570860, 43731251, 87462502, 174925004, 218656255, 437312510, 874625020]

約数ペア:

[(1, 874625020), (2, 437312510), (4, 218656255), (5, 174925004), (10, 87462502), (20, 43731251), (157, 5570860), (314, 2785430), (628, 1392715), (785, 1114172), (1570, 557086), (3140, 278543)]