90401385

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1669}}^1$

素因数の和:1857

約数の個数: 32

約数和(自身を含む): 151983360

約数和(自身を除く): 61581975

約数列:

[1, 3, 5, 15, 23, 69, 115, 157, 345, 471, 785, 1669, 2355, 3611, 5007, 8345, 10833, 18055, 25035, 38387, 54165, 115161, 191935, 262033, 575805, 786099, 1310165, 3930495, 6026759, 18080277, 30133795, 90401385]

約数ペア:

[(1, 90401385), (3, 30133795), (5, 18080277), (15, 6026759), (23, 3930495), (69, 1310165), (115, 786099), (157, 575805), (345, 262033), (471, 191935), (785, 115161), (1669, 54165), (2355, 38387), (3611, 25035), (5007, 18055), (8345, 10833)]