19894660

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1607}}^1$

素因数の和:2235

約数の個数: 24

約数和(自身を含む): 41872320

約数和(自身を除く): 21977660

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1607, 2476, 3095, 3214, 6190, 6428, 8035, 12380, 16070, 32140, 994733, 1989466, 3978932, 4973665, 9947330, 19894660]

約数ペア:

[(1, 19894660), (2, 9947330), (4, 4973665), (5, 3978932), (10, 1989466), (20, 994733), (619, 32140), (1238, 16070), (1607, 12380), (2476, 8035), (3095, 6428), (3214, 6190)]