217886120

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{7883}}^1$

素因数の和:8585

約数の個数: 32

約数和(自身を含む): 491015520

約数和(自身を除く): 273129400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 7883, 13820, 15766, 27640, 31532, 39415, 63064, 78830, 157660, 315320, 5447153, 10894306, 21788612, 27235765, 43577224, 54471530, 108943060, 217886120]

約数ペア:

[(1, 217886120), (2, 108943060), (4, 54471530), (5, 43577224), (8, 27235765), (10, 21788612), (20, 10894306), (40, 5447153), (691, 315320), (1382, 157660), (2764, 78830), (3455, 63064), (5528, 39415), (6910, 31532), (7883, 27640), (13820, 15766)]