28941920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25841}}^1$

素因数の和:25863

約数の個数: 48

約数和(自身を含む): 78146208

約数和(自身を除く): 49204288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25841, 51682, 103364, 129205, 180887, 206728, 258410, 361774, 413456, 516820, 723548, 826912, 904435, 1033640, 1447096, 1808870, 2067280, 2894192, 3617740, 4134560, 5788384, 7235480, 14470960, 28941920]

約数ペア:

[(1, 28941920), (2, 14470960), (4, 7235480), (5, 5788384), (7, 4134560), (8, 3617740), (10, 2894192), (14, 2067280), (16, 1808870), (20, 1447096), (28, 1033640), (32, 904435), (35, 826912), (40, 723548), (56, 516820), (70, 413456), (80, 361774), (112, 258410), (140, 206728), (160, 180887), (224, 129205), (280, 103364), (560, 51682), (1120, 25841)]