81296015

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{3469}}^1$

素因数の和:3626

約数の個数: 16

約数和(自身を含む): 100768800

約数和(自身を除く): 19472785

約数列:

[1, 5, 43, 109, 215, 545, 3469, 4687, 17345, 23435, 149167, 378121, 745835, 1890605, 16259203, 81296015]

約数ペア:

[(1, 81296015), (5, 16259203), (43, 1890605), (109, 745835), (215, 378121), (545, 149167), (3469, 23435), (4687, 17345)]