391040505

素因数分解:

$3^2\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{4391}}^1$

素因数の和:6381

約数の個数: 24

約数和(自身を含む): 678300480

約数和(自身を除く): 287259975

約数列:

[1, 3, 5, 9, 15, 45, 1979, 4391, 5937, 9895, 13173, 17811, 21955, 29685, 39519, 65865, 89055, 197595, 8689789, 26069367, 43448945, 78208101, 130346835, 391040505]

約数ペア:

[(1, 391040505), (3, 130346835), (5, 78208101), (9, 43448945), (15, 26069367), (45, 8689789), (1979, 197595), (4391, 89055), (5937, 65865), (9895, 39519), (13173, 29685), (17811, 21955)]