19784890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1031}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 37895040

約数和(自身を除く): 18110150

約数列:

[1, 2, 5, 10, 19, 38, 95, 101, 190, 202, 505, 1010, 1031, 1919, 2062, 3838, 5155, 9595, 10310, 19190, 19589, 39178, 97945, 104131, 195890, 208262, 520655, 1041310, 1978489, 3956978, 9892445, 19784890]

約数ペア:

[(1, 19784890), (2, 9892445), (5, 3956978), (10, 1978489), (19, 1041310), (38, 520655), (95, 208262), (101, 195890), (190, 104131), (202, 97945), (505, 39178), (1010, 19589), (1031, 19190), (1919, 10310), (2062, 9595), (3838, 5155)]