28894515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2179

約数の個数: 32

約数和(自身を含む): 50512896

約数和(自身を除く): 21618381

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 2087, 2769, 4615, 6261, 10435, 13845, 27131, 31305, 81393, 135655, 148177, 406965, 444531, 740885, 1926301, 2222655, 5778903, 9631505, 28894515]

約数ペア:

[(1, 28894515), (3, 9631505), (5, 5778903), (13, 2222655), (15, 1926301), (39, 740885), (65, 444531), (71, 406965), (195, 148177), (213, 135655), (355, 81393), (923, 31305), (1065, 27131), (2087, 13845), (2769, 10435), (4615, 6261)]