256618515

素因数分解:

$3^1\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{8221}}^1$

素因数の和:10310

約数の個数: 16

約数和(自身を含む): 410836896

約数和(自身を除く): 154218381

約数列:

[1, 3, 5, 15, 2081, 6243, 8221, 10405, 24663, 31215, 41105, 123315, 17107901, 51323703, 85539505, 256618515]

約数ペア:

[(1, 256618515), (3, 85539505), (5, 51323703), (15, 17107901), (2081, 123315), (6243, 41105), (8221, 31215), (10405, 24663)]