25310840

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2521}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 57198960

約数和(自身を除く): 31888120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 2521, 5020, 5042, 10040, 10084, 12605, 20168, 25210, 50420, 100840, 632771, 1265542, 2531084, 3163855, 5062168, 6327710, 12655420, 25310840]

約数ペア:

[(1, 25310840), (2, 12655420), (4, 6327710), (5, 5062168), (8, 3163855), (10, 2531084), (20, 1265542), (40, 632771), (251, 100840), (502, 50420), (1004, 25210), (1255, 20168), (2008, 12605), (2510, 10084), (2521, 10040), (5020, 5042)]