16139140

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1973}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 33992280

約数和(自身を除く): 17853140

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 1973, 2045, 3946, 4090, 7892, 8180, 9865, 19730, 39460, 806957, 1613914, 3227828, 4034785, 8069570, 16139140]

約数ペア:

[(1, 16139140), (2, 8069570), (4, 4034785), (5, 3227828), (10, 1613914), (20, 806957), (409, 39460), (818, 19730), (1636, 9865), (1973, 8180), (2045, 7892), (3946, 4090)]