64023280

素因数分解:

$2^4\times 5^1\times {\mathrm{800291}}^1$

素因数の和:800304

約数の個数: 20

約数和(自身を含む): 148854312

約数和(自身を除く): 84831032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800291, 1600582, 3201164, 4001455, 6402328, 8002910, 12804656, 16005820, 32011640, 64023280]

約数ペア:

[(1, 64023280), (2, 32011640), (4, 16005820), (5, 12804656), (8, 8002910), (10, 6402328), (16, 4001455), (20, 3201164), (40, 1600582), (80, 800291)]