25404965

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 31643136

約数和(自身を除く): 6238171

約数列:

[1, 5, 31, 155, 251, 653, 1255, 3265, 7781, 20243, 38905, 101215, 163903, 819515, 5080993, 25404965]

約数ペア:

[(1, 25404965), (5, 5080993), (31, 819515), (155, 163903), (251, 101215), (653, 38905), (1255, 20243), (3265, 7781)]