28317700

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1423}}^1$

素因数の和:1636

約数の個数: 36

約数和(自身を含む): 61801600

約数和(自身を除く): 33483900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1423, 1990, 2846, 3980, 4975, 5692, 7115, 9950, 14230, 19900, 28460, 35575, 71150, 142300, 283177, 566354, 1132708, 1415885, 2831770, 5663540, 7079425, 14158850, 28317700]

約数ペア:

[(1, 28317700), (2, 14158850), (4, 7079425), (5, 5663540), (10, 2831770), (20, 1415885), (25, 1132708), (50, 566354), (100, 283177), (199, 142300), (398, 71150), (796, 35575), (995, 28460), (1423, 19900), (1990, 14230), (2846, 9950), (3980, 7115), (4975, 5692)]