201911420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{64303}}^1$

素因数の和:64469

約数の個数: 24

約数和(自身を含む): 426721344

約数和(自身を除く): 224809924

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 64303, 128606, 257212, 321515, 643030, 1286060, 10095571, 20191142, 40382284, 50477855, 100955710, 201911420]

約数ペア:

[(1, 201911420), (2, 100955710), (4, 50477855), (5, 40382284), (10, 20191142), (20, 10095571), (157, 1286060), (314, 643030), (628, 321515), (785, 257212), (1570, 128606), (3140, 64303)]