27918620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19661}}^1$

素因数の和:19741

約数の個数: 24

約数和(自身を含む): 59457888

約数和(自身を除く): 31539268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 19661, 39322, 78644, 98305, 196610, 393220, 1395931, 2791862, 5583724, 6979655, 13959310, 27918620]

約数ペア:

[(1, 27918620), (2, 13959310), (4, 6979655), (5, 5583724), (10, 2791862), (20, 1395931), (71, 393220), (142, 196610), (284, 98305), (355, 78644), (710, 39322), (1420, 19661)]