16815980

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1399}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 35397600

約数和(自身を除く): 18581620

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 1399, 2404, 2798, 3005, 5596, 6010, 6995, 12020, 13990, 27980, 840799, 1681598, 3363196, 4203995, 8407990, 16815980]

約数ペア:

[(1, 16815980), (2, 8407990), (4, 4203995), (5, 3363196), (10, 1681598), (20, 840799), (601, 27980), (1202, 13990), (1399, 12020), (2404, 6995), (2798, 6010), (3005, 5596)]