2223644440

素因数分解:

$2^3\times 5^1\times {\mathrm{10331}}^1\times {\mathrm{5381}}^1$

素因数の和:15723

約数の個数: 32

約数和(自身を含む): 5004614160

約数和(自身を除く): 2780969720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5381, 10331, 10762, 20662, 21524, 26905, 41324, 43048, 51655, 53810, 82648, 103310, 107620, 206620, 215240, 413240, 55591111, 111182222, 222364444, 277955555, 444728888, 555911110, 1111822220, 2223644440]

約数ペア:

[(1, 2223644440), (2, 1111822220), (4, 555911110), (5, 444728888), (8, 277955555), (10, 222364444), (20, 111182222), (40, 55591111), (5381, 413240), (10331, 215240), (10762, 206620), (20662, 107620), (21524, 103310), (26905, 82648), (41324, 53810), (43048, 51655)]