55288720

素因数分解:

$2^4\times 5^1\times {\mathrm{691109}}^1$

素因数の和:691122

約数の個数: 20

約数和(自身を含む): 128546460

約数和(自身を除く): 73257740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691109, 1382218, 2764436, 3455545, 5528872, 6911090, 11057744, 13822180, 27644360, 55288720]

約数ペア:

[(1, 55288720), (2, 27644360), (4, 13822180), (5, 11057744), (8, 6911090), (10, 5528872), (16, 3455545), (20, 2764436), (40, 1382218), (80, 691109)]