18618020

素因数分解:

$2^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{983}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 39178944

約数和(自身を除く): 20560924

約数列:

[1, 2, 4, 5, 10, 20, 947, 983, 1894, 1966, 3788, 3932, 4735, 4915, 9470, 9830, 18940, 19660, 930901, 1861802, 3723604, 4654505, 9309010, 18618020]

約数ペア:

[(1, 18618020), (2, 9309010), (4, 4654505), (5, 3723604), (10, 1861802), (20, 930901), (947, 19660), (983, 18940), (1894, 9830), (1966, 9470), (3788, 4915), (3932, 4735)]