19043830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{557}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 37122624

約数和(自身を除く): 18078794

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 263, 526, 557, 1114, 1315, 2630, 2785, 3419, 5570, 6838, 7241, 14482, 17095, 34190, 36205, 72410, 146491, 292982, 732455, 1464910, 1904383, 3808766, 9521915, 19043830]

約数ペア:

[(1, 19043830), (2, 9521915), (5, 3808766), (10, 1904383), (13, 1464910), (26, 732455), (65, 292982), (130, 146491), (263, 72410), (526, 36205), (557, 34190), (1114, 17095), (1315, 14482), (2630, 7241), (2785, 6838), (3419, 5570)]