16172840

素因数分解:

$2^3\times 5^1\times {\mathrm{404321}}^1$

素因数の和:404332

約数の個数: 16

約数和(自身を含む): 36388980

約数和(自身を除く): 20216140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 404321, 808642, 1617284, 2021605, 3234568, 4043210, 8086420, 16172840]

約数ペア:

[(1, 16172840), (2, 8086420), (4, 4043210), (5, 3234568), (8, 2021605), (10, 1617284), (20, 808642), (40, 404321)]