15582640

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1787}}^1$

素因数の和:1909

約数の個数: 40

約数和(自身を含む): 36582480

約数和(自身を除く): 20999840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1787, 2180, 3574, 4360, 7148, 8720, 8935, 14296, 17870, 28592, 35740, 71480, 142960, 194783, 389566, 779132, 973915, 1558264, 1947830, 3116528, 3895660, 7791320, 15582640]

約数ペア:

[(1, 15582640), (2, 7791320), (4, 3895660), (5, 3116528), (8, 1947830), (10, 1558264), (16, 973915), (20, 779132), (40, 389566), (80, 194783), (109, 142960), (218, 71480), (436, 35740), (545, 28592), (872, 17870), (1090, 14296), (1744, 8935), (1787, 8720), (2180, 7148), (3574, 4360)]