19785320

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2179}}^1$

素因数の和:2417

約数の個数: 32

約数和(自身を含む): 44733600

約数和(自身を除く): 24948280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2179, 2270, 4358, 4540, 8716, 9080, 10895, 17432, 21790, 43580, 87160, 494633, 989266, 1978532, 2473165, 3957064, 4946330, 9892660, 19785320]

約数ペア:

[(1, 19785320), (2, 9892660), (4, 4946330), (5, 3957064), (8, 2473165), (10, 1978532), (20, 989266), (40, 494633), (227, 87160), (454, 43580), (908, 21790), (1135, 17432), (1816, 10895), (2179, 9080), (2270, 8716), (4358, 4540)]