642649905

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{32531}}^1$

素因数の和:32981

約数の個数: 24

約数和(自身を含む): 1116498240

約数和(自身を除く): 473848335

約数列:

[1, 3, 5, 9, 15, 45, 439, 1317, 2195, 3951, 6585, 19755, 32531, 97593, 162655, 292779, 487965, 1463895, 14281109, 42843327, 71405545, 128529981, 214216635, 642649905]

約数ペア:

[(1, 642649905), (3, 214216635), (5, 128529981), (9, 71405545), (15, 42843327), (45, 14281109), (439, 1463895), (1317, 487965), (2195, 292779), (3951, 162655), (6585, 97593), (19755, 32531)]