19690150

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1999}}^1$

素因数の和:2208

約数の個数: 24

約数和(自身を含む): 36828000

約数和(自身を除く): 17137850

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 1999, 3998, 4925, 9850, 9995, 19990, 49975, 99950, 393803, 787606, 1969015, 3938030, 9845075, 19690150]

約数ペア:

[(1, 19690150), (2, 9845075), (5, 3938030), (10, 1969015), (25, 787606), (50, 393803), (197, 99950), (394, 49975), (985, 19990), (1970, 9995), (1999, 9850), (3998, 4925)]