19225480

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{919}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 43387200

約数和(自身を除く): 24161720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 919, 1046, 1838, 2092, 2615, 3676, 4184, 4595, 5230, 7352, 9190, 10460, 18380, 20920, 36760, 480637, 961274, 1922548, 2403185, 3845096, 4806370, 9612740, 19225480]

約数ペア:

[(1, 19225480), (2, 9612740), (4, 4806370), (5, 3845096), (8, 2403185), (10, 1922548), (20, 961274), (40, 480637), (523, 36760), (919, 20920), (1046, 18380), (1838, 10460), (2092, 9190), (2615, 7352), (3676, 5230), (4184, 4595)]