89311640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{202981}}^1$

素因数の和:203003

約数の個数: 32

約数和(自身を含む): 219220560

約数和(自身を除く): 129908920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 202981, 405962, 811924, 1014905, 1623848, 2029810, 2232791, 4059620, 4465582, 8119240, 8931164, 11163955, 17862328, 22327910, 44655820, 89311640]

約数ペア:

[(1, 89311640), (2, 44655820), (4, 22327910), (5, 17862328), (8, 11163955), (10, 8931164), (11, 8119240), (20, 4465582), (22, 4059620), (40, 2232791), (44, 2029810), (55, 1623848), (88, 1014905), (110, 811924), (220, 405962), (440, 202981)]