16394260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19993}}^1$

素因数の和:20043

約数の個数: 24

約数和(自身を含む): 35269416

約数和(自身を除く): 18875156

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19993, 39986, 79972, 99965, 199930, 399860, 819713, 1639426, 3278852, 4098565, 8197130, 16394260]

約数ペア:

[(1, 16394260), (2, 8197130), (4, 4098565), (5, 3278852), (10, 1639426), (20, 819713), (41, 399860), (82, 199930), (164, 99965), (205, 79972), (410, 39986), (820, 19993)]