206838620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{145661}}^1$

素因数の和:145741

約数の個数: 24

約数和(自身を含む): 440481888

約数和(自身を除く): 233643268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 145661, 291322, 582644, 728305, 1456610, 2913220, 10341931, 20683862, 41367724, 51709655, 103419310, 206838620]

約数ペア:

[(1, 206838620), (2, 103419310), (4, 51709655), (5, 41367724), (10, 20683862), (20, 10341931), (71, 2913220), (142, 1456610), (284, 728305), (355, 582644), (710, 291322), (1420, 145661)]