20968720

素因数分解:

$2^4\times 5^1\times {\mathrm{262109}}^1$

素因数の和:262122

約数の個数: 20

約数和(自身を含む): 48752460

約数和(自身を除く): 27783740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262109, 524218, 1048436, 1310545, 2096872, 2621090, 4193744, 5242180, 10484360, 20968720]

約数ペア:

[(1, 20968720), (2, 10484360), (4, 5242180), (5, 4193744), (8, 2621090), (10, 2096872), (16, 1310545), (20, 1048436), (40, 524218), (80, 262109)]