8201080

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 18534240

約数和(自身を除く): 10333160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 487, 842, 974, 1684, 1948, 2105, 2435, 3368, 3896, 4210, 4870, 8420, 9740, 16840, 19480, 205027, 410054, 820108, 1025135, 1640216, 2050270, 4100540, 8201080]

約数ペア:

[(1, 8201080), (2, 4100540), (4, 2050270), (5, 1640216), (8, 1025135), (10, 820108), (20, 410054), (40, 205027), (421, 19480), (487, 16840), (842, 9740), (974, 8420), (1684, 4870), (1948, 4210), (2105, 3896), (2435, 3368)]