28504760

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3581}}^1$

素因数の和:3791

約数の個数: 32

約数和(自身を含む): 64476000

約数和(自身を除く): 35971240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3581, 3980, 7162, 7960, 14324, 17905, 28648, 35810, 71620, 143240, 712619, 1425238, 2850476, 3563095, 5700952, 7126190, 14252380, 28504760]

約数ペア:

[(1, 28504760), (2, 14252380), (4, 7126190), (5, 5700952), (8, 3563095), (10, 2850476), (20, 1425238), (40, 712619), (199, 143240), (398, 71620), (796, 35810), (995, 28648), (1592, 17905), (1990, 14324), (3581, 7960), (3980, 7162)]