201616880

素因数分解:

$2^4\times 5^1\times {\mathrm{2520211}}^1$

素因数の和:2520224

約数の個数: 20

約数和(自身を含む): 468759432

約数和(自身を除く): 267142552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520211, 5040422, 10080844, 12601055, 20161688, 25202110, 40323376, 50404220, 100808440, 201616880]

約数ペア:

[(1, 201616880), (2, 100808440), (4, 50404220), (5, 40323376), (8, 25202110), (10, 20161688), (16, 12601055), (20, 10080844), (40, 5040422), (80, 2520211)]