205390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:96

約数の個数: 32

約数和(自身を含む): 414720

約数和(自身を除く): 209330

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 47, 94, 95, 115, 190, 230, 235, 437, 470, 874, 893, 1081, 1786, 2162, 2185, 4370, 4465, 5405, 8930, 10810, 20539, 41078, 102695, 205390]

約数ペア:

[(1, 205390), (2, 102695), (5, 41078), (10, 20539), (19, 10810), (23, 8930), (38, 5405), (46, 4465), (47, 4370), (94, 2185), (95, 2162), (115, 1786), (190, 1081), (230, 893), (235, 874), (437, 470)]