28947025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 37997568

約数和(自身を除く): 9050543

約数列:

[1, 5, 25, 31, 41, 155, 205, 775, 911, 1025, 1271, 4555, 6355, 22775, 28241, 31775, 37351, 141205, 186755, 706025, 933775, 1157881, 5789405, 28947025]

約数ペア:

[(1, 28947025), (5, 5789405), (25, 1157881), (31, 933775), (41, 706025), (155, 186755), (205, 141205), (775, 37351), (911, 31775), (1025, 28241), (1271, 22775), (4555, 6355)]