18728135

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2789}}^1$

素因数の和:2890

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 5377465

約数列:

[1, 5, 17, 79, 85, 395, 1343, 2789, 6715, 13945, 47413, 220331, 237065, 1101655, 3745627, 18728135]

約数ペア:

[(1, 18728135), (5, 3745627), (17, 1101655), (79, 237065), (85, 220331), (395, 47413), (1343, 13945), (2789, 6715)]