20553890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{613}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 42439680

約数和(自身を除く): 21885790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 479, 613, 958, 1226, 2395, 3065, 3353, 4291, 4790, 6130, 6706, 8582, 16765, 21455, 33530, 42910, 293627, 587254, 1468135, 2055389, 2936270, 4110778, 10276945, 20553890]

約数ペア:

[(1, 20553890), (2, 10276945), (5, 4110778), (7, 2936270), (10, 2055389), (14, 1468135), (35, 587254), (70, 293627), (479, 42910), (613, 33530), (958, 21455), (1226, 16765), (2395, 8582), (3065, 6706), (3353, 6130), (4291, 4790)]