87897140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{258521}}^1$

素因数の和:258547

約数の個数: 24

約数和(自身を含む): 195442632

約数和(自身を除く): 107545492

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 258521, 517042, 1034084, 1292605, 2585210, 4394857, 5170420, 8789714, 17579428, 21974285, 43948570, 87897140]

約数ペア:

[(1, 87897140), (2, 43948570), (4, 21974285), (5, 17579428), (10, 8789714), (17, 5170420), (20, 4394857), (34, 2585210), (68, 1292605), (85, 1034084), (170, 517042), (340, 258521)]