18264820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{461}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 44085888

約数和(自身を除く): 25821068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 461, 566, 922, 1132, 1415, 1844, 1981, 2305, 2830, 3227, 3962, 4610, 5660, 6454, 7924, 9220, 9905, 12908, 16135, 19810, 32270, 39620, 64540, 130463, 260926, 521852, 652315, 913241, 1304630, 1826482, 2609260, 3652964, 4566205, 9132410, 18264820]

約数ペア:

[(1, 18264820), (2, 9132410), (4, 4566205), (5, 3652964), (7, 2609260), (10, 1826482), (14, 1304630), (20, 913241), (28, 652315), (35, 521852), (70, 260926), (140, 130463), (283, 64540), (461, 39620), (566, 32270), (922, 19810), (1132, 16135), (1415, 12908), (1844, 9905), (1981, 9220), (2305, 7924), (2830, 6454), (3227, 5660), (3962, 4610)]