2805965

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 3565056

約数和(自身を除く): 759091

約数列:

[1, 5, 31, 43, 155, 215, 421, 1333, 2105, 6665, 13051, 18103, 65255, 90515, 561193, 2805965]

約数ペア:

[(1, 2805965), (5, 561193), (31, 90515), (43, 65255), (155, 18103), (215, 13051), (421, 6665), (1333, 2105)]