408045640

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{7841}}^1$

素因数の和:9153

約数の個数: 32

約数和(自身を含む): 918925560

約数和(自身を除く): 510879920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 2602, 5204, 6505, 7841, 10408, 13010, 15682, 26020, 31364, 39205, 52040, 62728, 78410, 156820, 313640, 10201141, 20402282, 40804564, 51005705, 81609128, 102011410, 204022820, 408045640]

約数ペア:

[(1, 408045640), (2, 204022820), (4, 102011410), (5, 81609128), (8, 51005705), (10, 40804564), (20, 20402282), (40, 10201141), (1301, 313640), (2602, 156820), (5204, 78410), (6505, 62728), (7841, 52040), (10408, 39205), (13010, 31364), (15682, 26020)]