8153240

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 18431280

約数和(自身を除く): 10278040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 643, 1268, 1286, 1585, 2536, 2572, 3170, 3215, 5144, 6340, 6430, 12680, 12860, 25720, 203831, 407662, 815324, 1019155, 1630648, 2038310, 4076620, 8153240]

約数ペア:

[(1, 8153240), (2, 4076620), (4, 2038310), (5, 1630648), (8, 1019155), (10, 815324), (20, 407662), (40, 203831), (317, 25720), (634, 12860), (643, 12680), (1268, 6430), (1286, 6340), (1585, 5144), (2536, 3215), (2572, 3170)]