161728660

素因数分解:

$2^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{8539}}^1$

素因数の和:9495

約数の個数: 24

約数和(自身を含む): 340028640

約数和(自身を除く): 178299980

約数列:

[1, 2, 4, 5, 10, 20, 947, 1894, 3788, 4735, 8539, 9470, 17078, 18940, 34156, 42695, 85390, 170780, 8086433, 16172866, 32345732, 40432165, 80864330, 161728660]

約数ペア:

[(1, 161728660), (2, 80864330), (4, 40432165), (5, 32345732), (10, 16172866), (20, 8086433), (947, 170780), (1894, 85390), (3788, 42695), (4735, 34156), (8539, 18940), (9470, 17078)]