19438330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 17627270

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 263, 389, 526, 778, 1315, 1945, 2630, 3890, 4997, 7391, 9994, 14782, 24985, 36955, 49970, 73910, 102307, 204614, 511535, 1023070, 1943833, 3887666, 9719165, 19438330]

約数ペア:

[(1, 19438330), (2, 9719165), (5, 3887666), (10, 1943833), (19, 1023070), (38, 511535), (95, 204614), (190, 102307), (263, 73910), (389, 49970), (526, 36955), (778, 24985), (1315, 14782), (1945, 9994), (2630, 7391), (3890, 4997)]