647320640

素因数分解:

$2^6\times 5^1\times {\mathrm{2022877}}^1$

素因数の和:2022894

約数の個数: 28

約数和(自身を含む): 1541433036

約数和(自身を除く): 894112396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2022877, 4045754, 8091508, 10114385, 16183016, 20228770, 32366032, 40457540, 64732064, 80915080, 129464128, 161830160, 323660320, 647320640]

約数ペア:

[(1, 647320640), (2, 323660320), (4, 161830160), (5, 129464128), (8, 80915080), (10, 64732064), (16, 40457540), (20, 32366032), (32, 20228770), (40, 16183016), (64, 10114385), (80, 8091508), (160, 4045754), (320, 2022877)]