19399700

素因数分解:

$2^2\times 5^2\times {\mathrm{419}}^1\times {\mathrm{463}}^1$

素因数の和:896

約数の個数: 36

約数和(自身を含む): 42288960

約数和(自身を除く): 22889260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 419, 463, 838, 926, 1676, 1852, 2095, 2315, 4190, 4630, 8380, 9260, 10475, 11575, 20950, 23150, 41900, 46300, 193997, 387994, 775988, 969985, 1939970, 3879940, 4849925, 9699850, 19399700]

約数ペア:

[(1, 19399700), (2, 9699850), (4, 4849925), (5, 3879940), (10, 1939970), (20, 969985), (25, 775988), (50, 387994), (100, 193997), (419, 46300), (463, 41900), (838, 23150), (926, 20950), (1676, 11575), (1852, 10475), (2095, 9260), (2315, 8380), (4190, 4630)]