5128720

素因数分解:

$2^4\times 5^1\times {\mathrm{64109}}^1$

素因数の和:64122

約数の個数: 20

約数和(自身を含む): 11924460

約数和(自身を除く): 6795740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 64109, 128218, 256436, 320545, 512872, 641090, 1025744, 1282180, 2564360, 5128720]

約数ペア:

[(1, 5128720), (2, 2564360), (4, 1282180), (5, 1025744), (8, 641090), (10, 512872), (16, 320545), (20, 256436), (40, 128218), (80, 64109)]