19562780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51481}}^1$

素因数の和:51509

約数の個数: 24

約数和(自身を含む): 43244880

約数和(自身を除く): 23682100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51481, 102962, 205924, 257405, 514810, 978139, 1029620, 1956278, 3912556, 4890695, 9781390, 19562780]

約数ペア:

[(1, 19562780), (2, 9781390), (4, 4890695), (5, 3912556), (10, 1956278), (19, 1029620), (20, 978139), (38, 514810), (76, 257405), (95, 205924), (190, 102962), (380, 51481)]