19410290

素因数分解:

$2^1\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1999}}^1$

素因数の和:2977

約数の個数: 16

約数和(自身を含む): 34992000

約数和(自身を除く): 15581710

約数列:

[1, 2, 5, 10, 971, 1942, 1999, 3998, 4855, 9710, 9995, 19990, 1941029, 3882058, 9705145, 19410290]

約数ペア:

[(1, 19410290), (2, 9705145), (5, 3882058), (10, 1941029), (971, 19990), (1942, 9995), (1999, 9710), (3998, 4855)]