25210840

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2053}}^1$

素因数の和:2371

約数の個数: 32

約数和(自身を含む): 56936880

約数和(自身を除く): 31726040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2053, 2456, 3070, 4106, 6140, 8212, 10265, 12280, 16424, 20530, 41060, 82120, 630271, 1260542, 2521084, 3151355, 5042168, 6302710, 12605420, 25210840]

約数ペア:

[(1, 25210840), (2, 12605420), (4, 6302710), (5, 5042168), (8, 3151355), (10, 2521084), (20, 1260542), (40, 630271), (307, 82120), (614, 41060), (1228, 20530), (1535, 16424), (2053, 12280), (2456, 10265), (3070, 8212), (4106, 6140)]