84978520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193133}}^1$

素因数の和:193155

約数の個数: 32

約数和(自身を含む): 208584720

約数和(自身を除く): 123606200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 193133, 386266, 772532, 965665, 1545064, 1931330, 2124463, 3862660, 4248926, 7725320, 8497852, 10622315, 16995704, 21244630, 42489260, 84978520]

約数ペア:

[(1, 84978520), (2, 42489260), (4, 21244630), (5, 16995704), (8, 10622315), (10, 8497852), (11, 7725320), (20, 4248926), (22, 3862660), (40, 2124463), (44, 1931330), (55, 1545064), (88, 965665), (110, 772532), (220, 386266), (440, 193133)]