20940208

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12007}}^1$

素因数の和:12124

約数の個数: 20

約数和(自身を含む): 40947280

約数和(自身を除く): 20007072

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12007, 24014, 48028, 96056, 192112, 1308763, 2617526, 5235052, 10470104, 20940208]

約数ペア:

[(1, 20940208), (2, 10470104), (4, 5235052), (8, 2617526), (16, 1308763), (109, 192112), (218, 96056), (436, 48028), (872, 24014), (1744, 12007)]