648752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3119}}^1$

素因数の和:3140

約数の個数: 20

約数和(自身を含む): 1354080

約数和(自身を除く): 705328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3119, 6238, 12476, 24952, 40547, 49904, 81094, 162188, 324376, 648752]

約数ペア:

[(1, 648752), (2, 324376), (4, 162188), (8, 81094), (13, 49904), (16, 40547), (26, 24952), (52, 12476), (104, 6238), (208, 3119)]