28478485

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2133

約数の個数: 32

約数和(自身を含む): 43172352

約数和(自身を除く): 14693867

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1955, 2081, 2737, 10405, 13685, 14567, 35377, 47863, 72835, 176885, 239315, 247639, 335041, 813671, 1238195, 1675205, 4068355, 5695697, 28478485]

約数ペア:

[(1, 28478485), (5, 5695697), (7, 4068355), (17, 1675205), (23, 1238195), (35, 813671), (85, 335041), (115, 247639), (119, 239315), (161, 176885), (391, 72835), (595, 47863), (805, 35377), (1955, 14567), (2081, 13685), (2737, 10405)]