13880140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16927}}^1$

素因数の和:16977

約数の個数: 24

約数和(自身を含む): 29860992

約数和(自身を除く): 15980852

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 16927, 33854, 67708, 84635, 169270, 338540, 694007, 1388014, 2776028, 3470035, 6940070, 13880140]

約数ペア:

[(1, 13880140), (2, 6940070), (4, 3470035), (5, 2776028), (10, 1388014), (20, 694007), (41, 338540), (82, 169270), (164, 84635), (205, 67708), (410, 33854), (820, 16927)]