19613980

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1399}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 21663620

約数列:

[1, 2, 4, 5, 10, 20, 701, 1399, 1402, 2798, 2804, 3505, 5596, 6995, 7010, 13990, 14020, 27980, 980699, 1961398, 3922796, 4903495, 9806990, 19613980]

約数ペア:

[(1, 19613980), (2, 9806990), (4, 4903495), (5, 3922796), (10, 1961398), (20, 980699), (701, 27980), (1399, 14020), (1402, 13990), (2798, 7010), (2804, 6995), (3505, 5596)]