18317720

素因数分解:

$2^3\times 5^1\times {\mathrm{457943}}^1$

素因数の和:457954

約数の個数: 16

約数和(自身を含む): 41214960

約数和(自身を除く): 22897240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457943, 915886, 1831772, 2289715, 3663544, 4579430, 9158860, 18317720]

約数ペア:

[(1, 18317720), (2, 9158860), (4, 4579430), (5, 3663544), (8, 2289715), (10, 1831772), (20, 915886), (40, 457943)]