161728400

素因数分解:

$2^4\times 5^2\times {\mathrm{404321}}^1$

素因数の和:404339

約数の個数: 30

約数和(自身を含む): 388553442

約数和(自身を除く): 226825042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 404321, 808642, 1617284, 2021605, 3234568, 4043210, 6469136, 8086420, 10108025, 16172840, 20216050, 32345680, 40432100, 80864200, 161728400]

約数ペア:

[(1, 161728400), (2, 80864200), (4, 40432100), (5, 32345680), (8, 20216050), (10, 16172840), (16, 10108025), (20, 8086420), (25, 6469136), (40, 4043210), (50, 3234568), (80, 2021605), (100, 1617284), (200, 808642), (400, 404321)]