404978840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1446353}}^1$

素因数の和:1446371

約数の個数: 32

約数和(自身を含む): 1041374880

約数和(自身を除く): 636396040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1446353, 2892706, 5785412, 7231765, 10124471, 11570824, 14463530, 20248942, 28927060, 40497884, 50622355, 57854120, 80995768, 101244710, 202489420, 404978840]

約数ペア:

[(1, 404978840), (2, 202489420), (4, 101244710), (5, 80995768), (7, 57854120), (8, 50622355), (10, 40497884), (14, 28927060), (20, 20248942), (28, 14463530), (35, 11570824), (40, 10124471), (56, 7231765), (70, 5785412), (140, 2892706), (280, 1446353)]