648272

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1346

約数の個数: 20

約数和(自身を含む): 1297536

約数和(自身を除く): 649264

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1307, 2614, 5228, 10456, 20912, 40517, 81034, 162068, 324136, 648272]

約数ペア:

[(1, 648272), (2, 324136), (4, 162068), (8, 81034), (16, 40517), (31, 20912), (62, 10456), (124, 5228), (248, 2614), (496, 1307)]