128550980

素因数分解:

$2^2\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{3761}}^1$

素因数の和:5479

約数の個数: 24

約数和(自身を含む): 270186840

約数和(自身を除く): 141635860

約数列:

[1, 2, 4, 5, 10, 20, 1709, 3418, 3761, 6836, 7522, 8545, 15044, 17090, 18805, 34180, 37610, 75220, 6427549, 12855098, 25710196, 32137745, 64275490, 128550980]

約数ペア:

[(1, 128550980), (2, 64275490), (4, 32137745), (5, 25710196), (10, 12855098), (20, 6427549), (1709, 75220), (3418, 37610), (3761, 34180), (6836, 18805), (7522, 17090), (8545, 15044)]