7886420

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1571}}^1$

素因数の和:1831

約数の個数: 24

約数和(自身を含む): 16638048

約数和(自身を除く): 8751628

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 1571, 2510, 3142, 5020, 6284, 7855, 15710, 31420, 394321, 788642, 1577284, 1971605, 3943210, 7886420]

約数ペア:

[(1, 7886420), (2, 3943210), (4, 1971605), (5, 1577284), (10, 788642), (20, 394321), (251, 31420), (502, 15710), (1004, 7855), (1255, 6284), (1571, 5020), (2510, 3142)]