7978520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18133}}^1$

素因数の和:18155

約数の個数: 32

約数和(自身を含む): 19584720

約数和(自身を除く): 11606200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 18133, 36266, 72532, 90665, 145064, 181330, 199463, 362660, 398926, 725320, 797852, 997315, 1595704, 1994630, 3989260, 7978520]

約数ペア:

[(1, 7978520), (2, 3989260), (4, 1994630), (5, 1595704), (8, 997315), (10, 797852), (11, 725320), (20, 398926), (22, 362660), (40, 199463), (44, 181330), (55, 145064), (88, 90665), (110, 72532), (220, 36266), (440, 18133)]