1996505

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 2893320

約数和(自身を除く): 896815

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 281, 1015, 1405, 1421, 1967, 7105, 8149, 9835, 13769, 40745, 57043, 68845, 285215, 399301, 1996505]

約数ペア:

[(1, 1996505), (5, 399301), (7, 285215), (29, 68845), (35, 57043), (49, 40745), (145, 13769), (203, 9835), (245, 8149), (281, 7105), (1015, 1967), (1405, 1421)]