215540840

素因数分解:

$2^3\times 5^1\times {\mathrm{5388521}}^1$

素因数の和:5388532

約数の個数: 16

約数和(自身を含む): 484966980

約数和(自身を除く): 269426140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5388521, 10777042, 21554084, 26942605, 43108168, 53885210, 107770420, 215540840]

約数ペア:

[(1, 215540840), (2, 107770420), (4, 53885210), (5, 43108168), (8, 26942605), (10, 21554084), (20, 10777042), (40, 5388521)]